Question

Consider the situation shown in figure. The wire AB slides on the fixed rails with a constant velocity. If the wire AB is replaced by a semicircular wire, the magnitude of the induced current will

• A. Increase
• B. Remain the same
• C. Decrease
• D. Increase or decrease depending on whether the semicircle bulges towards the resistance or away from it.

Answer 1

The correct option is B Remain the same

In both cases,$e=V\times B\times dl=VBl$

(option B is correct)