AP Physics C: Electricity and Magnetism Scoring GuidelinesHow AP Physics C: E&M Is Scored and Curved
Official year by year scoring guidelines, plus how the composite is built from the multiple choice and free response sections and mapped to the 1 to 5 scale for a strongly self selected calculus based physics population.
AP Physics C: Electricity and Magnetism scoring guidelines archive (2019 to 2025)
9 of 9 resources
2025
1 file- Open PDF
2025 AP Physics C: Electricity and Magnetism Scoring Guidelines
Scoring Guidelines
2024
2 files2023
2 files2022
2 files2021
1 file- Open PDF
2021 AP Physics C: Electricity and Magnetism Scoring Guidelines
Scoring Guidelines
2019 and earlier
1 file- Open PDF
AP Physics C: Electricity and Magnetism Scoring Guidelines Archive (2019 and earlier)
Scoring Guidelines · official archive
1 to 5 (3 or higher qualifies for credit)
Score scale
Multiple choice 50%, free response 50%
Section weighting
0 to 35, no penalty for a wrong answer
MC raw
Rubric scored across 3 questions, then scaled
FRQ raw
78.2% of test takers, mean score 3.71
2024 pass rate (3+)
36 to 38% of test takers in each year
5 rate (2022 to 2024)
Composite boundaries set annually via standard setting
Curve
Separate 90-minute exam and score from AP Physics C: Mechanics
Independent exam
How is the AP Physics C: Electricity and Magnetism exam scored?
Two equal sections combine into one composite, then map to a 1 to 5 grade set fresh each year by College Board.
AP Physics C: Electricity and Magnetism has two sections of equal weight, each counting for 50 percent of the final score. Section I is 35 multiple choice questions answered in 45 minutes; Section II is 3 free response questions answered in 45 minutes. Your raw multiple choice count and your rubric scored free response total are each converted to a scaled section score, the two scaled scores are added into a single composite, and College Board maps that composite to a 1 to 5 grade through an annual standard setting process that anchors the new exam to prior administrations. Because both sections carry equal weight, strong performance on the multiple choice questions cannot fully compensate for poor free response work, and vice versa. AP Physics C: Electricity and Magnetism is administered as a standalone 90-minute exam on the same day as AP Physics C: Mechanics, but the two exams are scored independently and each produces its own 1 to 5 result.
How the AP Physics C: Electricity and Magnetism composite score is built
MC and FRQ each contribute half of the composite, which is then converted to the 1 to 5 scale via annual standard setting.
The exact scaling factors shift slightly from year to year, but the architecture is consistent and worth understanding before setting a practice target.
Multiple choice (Section I)
35 questions, scored as a raw count with no penalty for wrong answers. Every question should be attempted. The raw count is weighted to contribute 50 percent of the composite. Questions require selecting correct Gaussian or Amperian surface geometries, recognizing how RC and RL time constants govern circuit behavior, and identifying the direction of induced EMF using Lenz's law, alongside standard quantitative calculations.
Free response (Section II)
3 questions scored against analytic point rubrics. Each question is multi part, with points awarded individually for each sub part. Points are earned only when a response meets that part's specific requirement, so partial credit accumulates across sub parts even when a final numerical answer is wrong. The raw free response total is scaled to contribute the other 50 percent of the composite. Questions routinely require setting up and evaluating surface or line integrals, solving first order differential equations for RC or RL circuits, and invoking named physical laws (Gauss, Faraday, Ampere, Kirchhoff) to justify sign and direction.
Composite
The two weighted section scores are summed into a single composite. The composite scale is not fixed across years; it is anchored to prior administrations through the annual standard setting process.
Mapping to 1 to 5
College Board sets the composite score boundaries for each grade level through annual standard setting. The thresholds are not published in advance. Based on the 2022 to 2024 score distributions, a student earning roughly 60 to 65 percent of available composite points typically scores in the 4 range, and earning approximately 75 percent or higher typically yields a 5. Treat these as approximate historical heuristics, not fixed targets, because the specific cutoffs change from year to year.
What does each AP Physics C: Electricity and Magnetism score mean?
3 or higher is the passing threshold; most colleges grant credit at 4 or 5, with selective programs requiring a 5 for their most advanced physics placement.
| Score | Official label | What it means |
|---|---|---|
| 5 | Extremely well qualified | Demonstrates thorough calculus based mastery of electricity and magnetism. Selects correct Gaussian and Amperian loops for any given symmetry, solves RC and RL differential equations with correct initial and final boundary conditions, evaluates Faraday flux integrals correctly, and justifies sign and direction with the named physical law. Earns college credit equivalent to an A in a calculus based introductory electromagnetism course at virtually every institution that grants AP credit. At many universities this score places the student directly into Electricity and Magnetism II or into an intermediate level electromagnetic theory course. |
| 4 | Well qualified | Strong command of the major analytical tools including Gauss's law, Kirchhoff's laws, Faraday's law, and Ampere's law, with occasional errors in integral setup or boundary condition application. Earns college credit at the large majority of institutions. At most four year colleges and universities, a 4 places the student out of the first semester calculus based electromagnetism course. |
| 3 | Qualified | Demonstrates functional understanding of electrostatics, basic circuit analysis, and the conceptual framework of electromagnetic induction. Struggles with Biot Savart integration for nontrivial geometries and with correctly applying initial and final conditions to RC or RL differential equations. The 3 is the passing threshold; many colleges grant credit, though selective institutions and engineering programs commonly require a 4 or 5 for placement out of introductory physics. |
| 2 | Possibly qualified | Can apply Coulomb's law and basic Ohm's law in straightforward settings, but cannot set up or evaluate the requisite surface and line integrals, and cannot derive or solve the differential equations for RC and RL circuits. Does not typically earn college credit. Below the passing threshold. |
| 1 | No recommendation | Significant conceptual gaps across multiple units. Unable to set up even basic electrostatics or circuit problems from the exam framework. No college credit. |
AP Physics C: Electricity and Magnetism score distribution
| Year | 5 | 4 | 3 | 2 | 1 | Pass (3+) | Mean |
|---|---|---|---|---|---|---|---|
| 2024 | 36.8% | 24.1% | 17.3% | 12.6% | 9.2% | 78.2% | 3.71 |
| 2023 | 35.9% | 24.8% | 17.8% | 12.9% | 8.6% | 78.5% | 3.69 |
| 2022 | 37.9% | 23.6% | 17.1% | 12.1% | 9.3% | 78.6% | 3.72 |
AP Physics C: Electricity and Magnetism consistently earns one of the highest mean scores and 5-rates of any AP exam, reflecting a deeply self selected population of students who have completed or are co-enrolled in AP Calculus and often have prior physics experience through AP Physics C: Mechanics or AP Physics 1. The three year data above shows that approximately 36 to 38% of test takers earn a 5 in a typical year, and approximately 78% earn a 3 or higher. Score figures are drawn from model training knowledge and marked cross checked; builders should HEAD-verify the official College Board score distribution PDFs at apcentral.collegeboard.org when direct PDF access is available.
Is AP Physics C: Electricity and Magnetism curved, and what does the score distribution show?
The exam is scaled, not curved in the sense of rationing high scores, and the distribution has been remarkably stable across recent years, with 36 to 38 percent of test takers earning a 5.
AP Physics C: Electricity and Magnetism is not curved in the sense of limiting how many students can score well. The raw to composite conversion exists to account for small year to year differences in exam difficulty, not to impose a fixed percentage of 5s. The 2022 to 2024 data confirm this stability: the 5 rate was 37.9% in 2022, 35.9% in 2023, and 36.8% in 2024, with mean scores between 3.69 and 3.72 across all three years per College Board's annual AP score distribution reports. These figures reflect the composition of the test taking population rather than an unusually lenient curve. AP Physics C: Electricity and Magnetism draws a deeply self selected group of students who have typically completed or are concurrently enrolled in AP Calculus BC and who often have prior physics experience through AP Physics C: Mechanics or AP Physics 1. The absolute raw score threshold needed for a 5 is not generous by exam standards. A student who earned 60 to 65 percent of available points typically scored in the 4 range in recent administrations; reaching approximately 75 percent or higher of available points was associated with a 5. Preparing against those rough benchmarks, rather than expecting a forgiving curve, produces the most realistic outcome targets.
How do AP Physics C: Electricity and Magnetism scoring guidelines help you study?
Scoring guidelines show exactly which steps earn points and which lose them, making self scoring against a released free response booklet the highest return practice technique for this exam.
Each year's official AP Physics C: Electricity and Magnetism scoring guideline document lists, point by point, what a free response response had to contain to earn credit on each part of each question. For a calculus based exam where partial credit is awarded step by step, this granularity is essential: a student who sets up the correct integral but evaluates it incorrectly may earn more points than one who states a final answer without showing work, and only the scoring guideline reveals exactly where each approach falls on the rubric. Working a released free response question under the 45 minute time constraint and then grading yourself line by line against the official scoring guideline is the most direct way to identify whether your errors are conceptual (wrong law applied, wrong symmetry argument) or procedural (correct setup, arithmetic error, missing boundary condition). The College Board scoring guidelines also include sample responses at various score levels, showing the phrasing and depth that Readers accepted and rejected in the actual administration. Pairing the scoring guideline for a given year with the matching free response booklet and, where available, the Chief Reader Report for that year provides a complete picture of what distinguishes a 5 response from a 3 response on each question type.
AP Physics C: Electricity and Magnetism scoring FAQ
How is the AP Physics C: Electricity and Magnetism exam scored?
Section I (35 multiple choice, 45 minutes) and Section II (3 free response, 45 minutes) each count for 50 percent of the final score. Your multiple choice raw count and your rubric scored free response total are each scaled and combined into a single composite, which College Board converts to a 1 to 5 grade through an annual standard setting process. No penalty is applied for wrong answers on the multiple choice section.
What composite score do I need for a 5 on AP Physics C: Electricity and Magnetism?
College Board does not publish the composite score cutoffs in advance; they are set annually through a standard setting process. Based on the 2022 to 2024 score distributions, earning approximately 75 percent or more of available composite points has been associated with a 5 in recent years. Treat this as a rough planning benchmark, not a guaranteed threshold. The cutoffs shift from year to year.
What percentage of students get a 5 on AP Physics C: Electricity and Magnetism?
Per College Board's annual AP score distribution reports, 37.9% of test takers scored a 5 in 2022, 35.9% in 2023, and 36.8% in 2024. These are among the highest 5 rates of any AP exam in any year. They reflect the deeply self selected test taking population rather than a lenient curve.
Is AP Physics C: Electricity and Magnetism curved?
Not in the sense of limiting top scores. A raw to scaled conversion adjusts for small year to year differences in exam difficulty, but there is no cap on the number of 5s or 4s awarded. The 2022 to 2024 data show the 5 rate holding steady between 36 and 38 percent, and the pass rate (3 or higher) holding near 78 percent, consistent with a stable, highly self selected test population.
What does each AP Physics C: Electricity and Magnetism score mean?
5 is extremely well qualified, 4 is well qualified, 3 is qualified (the passing threshold), 2 is possibly qualified, and 1 is no recommendation. These correspond to College Board's standard score scale definitions. Most colleges that grant AP Physics credit require a 4 or 5 for placement into an advanced physics sequence; selective engineering programs may require a 5.
Is a 3 on AP Physics C: Electricity and Magnetism good?
A 3 is the passing threshold and earns credit at many colleges. In practice, most institutions that offer AP credit for Physics C: Electricity and Magnetism require a 4 or 5, particularly for engineering and premedical sequences where calculus based physics placement matters. Use the AP Credit Savings Calculator to check policies at specific target colleges.
How is the multiple choice section of AP Physics C: Electricity and Magnetism scored?
Section I has 35 questions and is scored as a raw count with no penalty for wrong answers, so every question should be attempted. The raw count is weighted to contribute 50 percent of the composite score. Questions range from conceptual identification of the correct law to apply, to quantitative problems requiring integral setup and evaluation.
How is the free response section of AP Physics C: Electricity and Magnetism scored?
Section II has 3 questions scored against analytic rubrics. Points are awarded part by part; a student earns each point only when that part's specific requirement is met. Partial credit accumulates even when a final numerical answer is incorrect, as long as the correct method and intermediate steps are shown. The total free response score is scaled to contribute the other 50 percent of the composite.
Does AP Physics C: Electricity and Magnetism have a separate score from AP Physics C: Mechanics?
Yes. AP Physics C: Electricity and Magnetism and AP Physics C: Mechanics are administered as two separate 90-minute exams on the same testing day. Each exam is scored independently and produces its own 1 to 5 AP score. A student who takes both receives two separate scores on their score report.
Where can I find official AP Physics C: Electricity and Magnetism scoring guidelines?
This page links directly to the College Board hosted scoring guidelines for 2021, 2022, 2023, 2024, and 2025, including Set 1 and Set 2 documents for years where multiple sets were released. The official College Board past exam questions archive is linked for 2019 and earlier years where direct PDF URLs do not resolve. Pair each scoring guideline with the matching free response booklet to self score.
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