Question

The magnetic field inside a long straight solenoid-carrying current ______.

Options

• is zero

• decreases as we move towards its end

• increases as we move towards its end

• is the same at all points

Answer 1

The magnetic field inside a long straight solenoid-carrying current is the same at all points.

Explanation:

The magnetic field inside the current-carrying solenoid is constant in magnitude and direction and acts along the axis of the solenoid.