An electron is projected with uniform velocity along the axis inside a current carrying long

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🧑‍🏫 Author: Aditya Bhatt Sir   |   🕒 Last Updated: July 13, 2025

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📘Question

An electron is projected with uniform velocity along the axis inside a current carrying long solenoid. Then (1) the electron will be accelerated along the axis. 

(2) the electron will continue to move with uniform velocity along the axis of the solenoid. 

(3) the electron path will be circular about the axis. 

(4) the electron will experience a force at 45° to the axis and execute a helical path.            (JEE-2024)   

✅ Answer

An electron is projected with uniform velocity along the axis inside a current carrying long solenoid. Then :  (1) the electron will be accelerated along the axis.  (2) the electron will continue to move with uniform velocity along the axis of the solenoid.  (3) the electron path will be circular about the axis.   (4) the electron will experience a force at 45° to the axis and execute a helical path. 

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