A coil is placed in a magnetic field that is changing at a rate of 0.8 T/s. If the coil has 250 turns and an area of 0.025 m^2, what is the induced EMF?
Q1. A coil is placed in a magnetic field that is changing at a rate of 0.8 T/s. If the coil has 250 turns and an area of 0.025 m^2, what is the induced EMF?
Answer: 5 V
Explanation: Induced EMF = N*dΦ/dt = N*A*dB/dt = 250*0.025*0.8 = 5 V. Option A fails due to miscalculation.