Question

BAR magnet is moving along the axis of a loop & towards it as shown in the figure.

• A. $V_A-V_B$ is negative
• B. $V_A-V_B$ is zero
• C. $V_A-V_B$ is positive
• D. No current in the loop

Answer 1

The correct option is C $V_A-V_B$ is positive

The field into the loop is increasing towards right. So, the current induced in the loop will be in clockwise direction when viewed from the resistor AB. So, curernt flows from A to B. So, $V_A-V_B$ is positive.