Question

The magnetic field inside a 5.0-cm-diameter solenoid is 2.0 T and decreasing at 3.00 T/s . Part A What is the electric field strength inside the solenoid at a point on the axis?

Answer 1

Given Information:

Diameter of solenoid = 5.0 cm

Magnetic field = B = 2.0 T

Rate of change of magnetic field = 3.0 T/s

Required Information:

Electric field strength inside the solenoid at a point on the axis = ?

Answer:

The electric field strength inside the solenoid at a point on the axis is zero.

Explanation:

From the Faraday's Law

E = -r/2 dB/dt

Where dB/dt is the rate of change of magnetic field and r is zero because the distance from the axis is zero.

Therefore, electric field strength inside the solenoid at a point on the axis is 0.