JEE Mains · Physics · STD 12 - 4. Moving charges and magnetism
An electron is projected with uniform velocity along the axis inside a current carrying long solenoid. Then :
- A the electron will be accelerated along the axis.
- B the electron will continue to move with uniform velocity along the axis of the solenoid.
- C the electron path will be circular about the axis.
- D the electron will experience a force at \(45^{\circ}\) to the axis and execute a helical path.
Answer & Solution
Correct Answer
(B) the electron will continue to move with uniform velocity along the axis of the solenoid.
Step-by-step Solution
Detailed explanation
Since \(\vec{v} \| \vec{B}\) so force on electron due to magnetic field is zero. So it will move along axis with uniform velocity.
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