KCET2024PhysicsElectromagnetic Induction
An induced current of 2 A flows through a coil. The resistance of the coil is 10 . What is the change in magnetic flux associated with the coil in 1 ms ?
Options
- A0.2 10⁻² ~Wb
- B2 10⁻² ~Wb
- C22 10⁻² ~Wb
- D0.22 10⁻² ~Wb
Correct answer
B. 2 10⁻² ~Wb
Step-by-step solution
Given, I=2 ~A , R=10 =1 ~ms =10⁻³ ~s We know that, | |= t I R= t =I R t=2 10 10⁻³=0.02 ~Wb =2 10⁻² ~Wb