Question

An electron enters with its velocity in the direction of the uniform electric lines of force. Consider lines of force to be straight. Then

• A. The path of the electron will be a circle
• B. The path of the electron will be a parabola
• C. The magnitude of velocity of the electron will first decrease and then increase
• D. The magnitude of velocity of the electron will first increase and then decrease

Answer 1

The correct option is C The magnitude of velocity of the electron will first decrease and then increase

As electric field applies the force on electron in the direction opposite to it’s motion, the velocity of the electron will decrease.