Physics · Magnetic Effects of Current
Assertion (A): A charged particle is moving with velocity v in the x-y plane, making an angle θ (0 < θ < π2) with the x-axis. If a uniform magnetic field B is applied along the y-axis, the particle will move in a helical path with its axis parallel to the y-axis. Reason (R): The direction of the magnetic force acting on a charged particle moving in a magnetic field is always perpendicular to both the velocity of the particle and the magnetic field.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Both Assertion (A) and Reason (R) are false.✓
- 2Assertion (A) is true, but Reason (R) is false.
- 3Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of Assertion (A).
- 4Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
Correct answer
Both Assertion (A) and Reason (R) are false.
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