Question
Physics Question on Lenz law
A metallic rod of mass per unit length 0.5 kg m-1 is lying horizontally on a smooth inclined plane which makes an angle of 30° with the horizontal. The rod is not allowed to slide down by flowing a current through it when a magnetic field of induction 0.25 T is acting on it in the vertical direction. The current flowing in the rod to keep it stationary is
A
7.14 A
B
14.76 A
C
5.98 A
D
11.32 A
Answer
11.32 A
Explanation
Solution
The correct option is (D): 11.32 A