E
Editor
Sep 18, 2022
In order that no emf should be induced in a flat loop of wire placed in changing magnetic field, the angle between $\overrightarrow{B}$ and $\triangle \overrightarrow{A}$ should be:
Difficulty: Easy
A:
$0^{\circ}$
B:
$45^{\circ}$
C:
$90^{\circ}$
D:
$135^{\circ}$
ID: 63273db6ca83163ac3a0cd83