Question

The magnetic field inside a 5.0-cm-diameter solenoid is 2.0 T and decreasing at 4.0 T/s. What is the electric field strength inside the solenoid at a point (a) on the axis and (b) 2.0 cm from the axis?

S 2 N N SI CCCCCCCC min 1

Answer 1

Sal: According to the question, Magnetic field inside a solenoid at a reate late = 4.0 T/s Now electric field inside solenoid at s from the axis is, a distance dB E = 2 dt at a So, the electric field streength inside a solenoid point on the axis is, x 4 = 0 [Herce, for a point point on E = 2 (b a solenoid from the The electric field streength inside at a point s=2.0 cm 2.0 x 10-2 m axis is, E = x 4 = v/m 2 2x lo = 4 x 10-2 2