Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Electromagnetic Induction

Question:

Options:

a

b

c

d

Correct Answer:

b

Explanation:

$\text{Potential difference across cd } = Blv$

$ I = \frac{Blv}{R}$

$\text{Net force on cd is zero}$

$\Rightarrow mg = IlB = \frac{Blv}{R} lB $

$\Rightarrow v = \frac{mgR}{B^2l^2}$