Consider an ideal inductor L connected directly to an AC voltage source V, with I being the current in the loop. Summing voltage drops around the loop yields
A) $d I / d t = V / L$
B) $d V / d t = I / L$
C) $d V / d t = L / I$
D) $d I / d t = L / V$

Question

Quizplus · Accepted Answer

The voltage across an ideal inductor L connected to an AC voltage source is given by $V = L \frac{dI}{dt}$, which can be rearranged to $\frac{dI}{dt} = \frac{V}{L}$, matching choice A.

Consider an Ideal Inductor L Connected Directly to an AC dI/dt=V/Ld I / d t = V / LdI/dt=V/L

Consider an Ideal Inductor L Connected Directly to an AC $d I / d t = V / L$