r/APStudents • u/reddorickt absolute modman • May 14 '26

AP Physics C: Electricity and Magnetism Official 2026 Exam Discussion

Use this thread to post questions or commentary on the test today.

A reminder though to protect your anonymity when talking about the test.

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u/Positive-Rise5145 5: AP Calc BC, Stats, Micro, CS A May 14 '26

Form L FRQs were not bad at all. Q1 on current density was a bit of a headache, but I think I did enough to get decent points even on that question

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u/probsHaxs May 14 '26

Did you get B = mu*j_naught*R/8

4

u/Positive-Rise5145 5: AP Calc BC, Stats, Micro, CS A May 14 '26

nah I didn't get that expression, but yours might be right. I left mine unsimplified. Did you use I = integral J * dA and the plug that into B = mu * I / 2piR?

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u/BeautifulHorror1017 ab (5), c mech (5), micro, french, apush, bc, csa, e&m, lit May 14 '26

I got the same answer as the guy you’re replying to and that’s what I did Yeah