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  2. AP Physics C: Electricity and Magnetism - Wikipedia

    en.wikipedia.org/wiki/AP_Physics_C:_Electricity...

    Therefore, students should have completed or be concurrently enrolled in a calculus class. [1] Starting in the 2024–25 school year, all units in AP Physics C: Electricity and Magnetism are numbered sequentially after the 7 units in AP Physics C: Mechanics. This starts with Electric Charges, Fields, and Gauss's Law as unit 8 and ends with ...

  3. AP Physics B - Wikipedia

    en.wikipedia.org/wiki/AP_Physics_B

    Advanced Placement (AP) Physics B was a physics course administered by the College Board as part of its Advanced Placement program. It was equivalent to a year-long introductory university course covering Newtonian mechanics, electromagnetism, fluid mechanics, thermal physics, waves, optics, and modern physics.

  4. Multiple choice - Wikipedia

    en.wikipedia.org/wiki/Multiple_choice

    Multiple choice questions lend themselves to the development of objective assessment items, but without author training, questions can be subjective in nature. Because this style of test does not require a teacher to interpret answers, test-takers are graded purely on their selections, creating a lower likelihood of teacher bias in the results. [8]

  5. AP Physics - Wikipedia

    en.wikipedia.org/wiki/AP_Physics

    Both exams have the same number of multiple-choice questions and have identical free-response formats. [2] AP Physics 1 has the lowest average exam scores of any AP exam, while AP Physics C: Mechanics has among the highest. [3] Both exams cover a similar mixture of topics, focusing primarily on Newtonian mechanics, kinematics, rotation, and ...

  6. Electricity - Wikipedia

    en.wikipedia.org/wiki/Electricity

    An electric circuit is an interconnection of electric components such that electric charge is made to flow along a closed path (a circuit), usually to perform some useful task. [ 56 ] The components in an electric circuit can take many forms, which can include elements such as resistors , capacitors , switches , transformers and electronics .

  7. Advanced Placement - Wikipedia

    en.wikipedia.org/wiki/Advanced_Placement

    AP Physics C: Mechanics and AP Physics C: Electricity and Magnetism [67] The format of both exams changed in the same way: The number of MCQs increased from 35 to 40, and the time for that section increased from 45 minutes to 80 minutes. Each MCQ was changed to only have 4 options, rather than 5.

  8. Advanced Placement exams - Wikipedia

    en.wikipedia.org/wiki/Advanced_Placement_exams

    The Chief Reader's decision is based upon what percentage of students earned each AP Grade over the previous three years, how students did on multiple-choice questions that are used on the test from year to year, how he or she viewed the overall quality of the answers to the free response questions, how university students who took the exam as ...

  9. Current density - Wikipedia

    en.wikipedia.org/wiki/Current_density

    In electromagnetism, current density is the amount of charge per unit time that flows through a unit area of a chosen cross section. [1] The current density vector is defined as a vector whose magnitude is the electric current per cross-sectional area at a given point in space, its direction being that of the motion of the positive charges at this point.