In an ac circuit,the electric field
A)increases via the inverse-square law.
B)changes magnitude and direction with time.
C)is the same everywhere.
D)is non-existent.
E)none of these

Question

Quizplus · Accepted Answer

In an AC circuit, the electric field alternates in magnitude and direction with time due to the alternating current. Therefore, option B is the correct choice. Option A, the inverse-square law, only applies to stationary electric fields in a DC circuit. Option C, the electric field may vary in magnitude and direction in different parts of the circuit due to the presence of resistors, capacitors, and inductors. Option D, the electric field is present in an AC circuit but not in a superconducting circuit. Option E is incorrect.

In an Ac Circuit,the Electric Field