Problem 3313 A 1100turn coil of wire 200 cm in diameter is i

Problem 33.13 A 1100-turn coil of wire 2.00 cm in diameter is in a magnetic field that increases from 0 T to 0.120 T in 12.0 ms. The axis of the coil is parallel to the field. Part A What is the emf of the coil? Express your answer to two significant figures and include the appropriate units. Value Units Submit My Answers Give Up Provide Feedback Continue

Solution

From Faraday\'s law

E = N * d(BA )/ dt

dB/dt = 0.12 T / ( 12.0 * 10^-3 s ) = 10.0 T/s

E = N * A * dB/dt

= 1100 * ( pi * 0.01²) x 10

E = 3.46 V