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Imagine a current-carrying straight conductor with magnetic field of lines in anti-clockwise direction. Then the direction of current is determined by

Options

  1. Athe Right-Hand Thumb rule and it would be in the downward direction.
  2. Bthe Left-Hand Thumb rule and it would be in the downward direction.
  3. Cthe Right-Hand Thumb rule and it would be in the upward direction
  4. Dthe Left-Hand Thumb rule and it would be in the upward direction.

Correct answer

C. the Right-Hand Thumb rule and it would be in the upward direction

Step-by-step solution

It is given that the magnetic field associated with a current-carrying straight conductor is in an anticlockwise direction. Further, the conductor was held along the eastwest direction. Therefore, according to the right-hand thumb rule, the direction of current through it will be in the upward direction.

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