Question

A copper rod AB of length l is rotated about end A with a constant angular velocity ω. The electric field at a distance x from the axis of rotation is

• A. $\frac{m\omega^2x}{e}$
• B. $\frac{m\omega x}{el}$
• C. $\frac{mx}{\omega^2l}$
• D. $\frac{me}{\omega^2x}$

Answer 1

Answer: (A)

$\frac{m\omega^2x}{e}$

Answer 2

The correct answer is (A) : $\frac{m\omega^2x}{e}$.