Manipal MET2011PhysicsElectromagnetic Induction
A coil having an area of 2 ~m ^2 is placed in a magnetic field which changes from 1 ~Wb / m ^2 to 4 ~Wb / m ^2 in 2 s . The emf induced in the coil will be
Options
- A4 V
- B3 V
- C2 V
- D1 V
Correct answer
B. 3 V
Step-by-step solution
aligned & Induced emf e=n A d B d t & A= area of coil =2 m^2 & and & e= n=1 2 + 1 (4-1) 2 =3 ~V aligned