Q. An electron enters into a region of uniform magnetic field of strength $10\ webers/m^{2}$ with a speed of $3 \times 10^{7}m/s$ which of the following is not possible
A) The electron may or may not experience an acceleration
B) The electron may experience an acceleration but can continue to move with same speed
C) The electron may experience an acceleration and continue to move with same velocity
D) The kinetic energy of the electron remains unchanged
Explanation
The correct answer is Option C: The electron may experience an acceleration and continue to move with same velocity.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.