Question
Physics Question on Electromagnetic induction
A metallic rod of mass per unit length 0.5 kg m-1 is lying horizontally on smooth inclined plane which makes an angle of 30 degree with the horizontal. A magnetic field of strength 0.25 T is acting on it in the vertical direction. When a current I is flowing through it, the rod is not allowed to slide down. the quantity of current required to keep the road stationary is
A
14.76 Å
B
7.14 Å
C
11.32 Å
D
5.98 Å
Answer
11.32 Å
Explanation
Solution
The correct answer is (C) : 11.32 Å.