JEE Main2011PhysicsElectromagnetic InductionActual
A boat is moving due east in a region where the earth's magnetic field is 5.0 10⁻⁵ NA ⁻¹ ~m ⁻¹ due north and horizontal. The boat carries a vertical aerial 2 ~m long. If the speed of the boat is 1.50 ~ms ⁻¹ , the magnitude of the induced emf in the wire of aerial is :
Options
- A0.75 mV
- B0.50 mV
- C0.15 mV
- D1 mV
Correct answer
C. 0.15 mV
Step-by-step solution
E = B _ H VV =0.15 mV