A Long Solenoid Has a Radius of 4

Multiple Choice

A long solenoid has a radius of 4.0 cm and has 800 turns/m.If the current in the solenoid is increasing at the rate of 3.0 A/s,what is the magnitude of the induced electric field at a point 2.2 cm from the axis of the solenoid?

A) 3.3 *10 ^{- 5} V/m
B) 3.6 * 10 ^{- 5} V/m
C) 3.9 *10 ^{- 5} V/m
D) 4.2 *10 ^{- 5} V/m
E) 6.0 *10 ^{- 5} V/m