AP Physics C: Electricity and Magnetism.html |
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AP Physics C: Electricity and Magnetism is an Advanced Placement science course that studies electricity and magnetism. Methods of calculus are used wherever appropriate in formulating physical principles and in applying them to physical problems. It is supposed to be equivalent to an introductory college course in electricity and magnetism for physics majors. This course is often combined with AP Physics C: Mechanics to make a unified Physics C course that prepares for both exams, or it may be a separate course. In this scenario, Electricity and Magnetism is typically taught second, as it requires much of the knowledge gained in the Mechanics course. When only one Physics C course is offered, it is typically Mechanics, and this in combination with the fact that many schools do not complete their unified Physics C courses before the exam date is the probable explanation for more students taking the Mechanics exam than the Electricity and Magnetism exam.citation needed
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The exam
The exam is configured in two categories, a thirty-five (35) question multiple choice section and a three (3) question free response section1. In order to test knowledge as well as skills, the multiple choice section is taken without a calculator. The free response section permits the use of a calculator. The test is weighted such that each section is worth fifty percent (50%) of the final score. The exam is entirely separate from the Mechanics exam, requiring a different answer booklet and separate fee.
The topics covered by the exam are as follows2:
| Topic | Percent |
|---|---|
| Electrostatics | 30% |
| Conductors, capacitors, dielectrics | 14% |
| Electric circuits | 20% |
| Magnetic fields | 20% |
| Electromagnetism | 16% |
Purpose
According to the College Board web site, "This course ordinarily forms the first part of the college sequence that serves as the foundation in physics for students majoring in the physical sciences or engineering."3
Grade distribution
In the 2007 administration, 11,192 students took the exam from 1,492 schools. The mean score was a 3.53.
The grade distribution for 2007 was:
| Score | Percent |
|---|---|
| 5 | 33.8% |
| 4 | 25.7% |
| 3 | 12.1% |
| 2 | 16.9% |
| 1 | 11.5% |