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No force acts on a current-carrying conductor, when it is ______.

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Question

No force acts on a current-carrying conductor, when it is ______.

Options

  • parallel to the magnetic field

  • perpendicular to the magnetic field

  • inclined at 45° to the magnetic field

  • none of these

MCQ
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Solution

No force acts on a current-carrying conductor, when it is parallel to the magnetic field.

Explanation: 

The force acting on a current-carrying conductor in a magnetic field is given by:

\[F=BIL\sin\theta\]

When the conductor is parallel to the magnetic field, \(\theta=0^\circ\) and \(\sin 0^\circ=0\). Hence, the force acting on the conductor is zero.

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Chapter 4: Electricity and Magnetism - Multiple Choice Questions and Assertion-Reason Type Questions [Page 305]

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Frank Physics Part 2 [English] Class 10 ICSE
Chapter 4 Electricity and Magnetism
Multiple Choice Questions and Assertion-Reason Type Questions | Q 48. | Page 305
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