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An electron moves on a straight line path as shown. The is a coil adjacent to the path of electron. What will be the direction of current, if any, induced in the coil?
image

  1. A
    No current induced
  2. B
    abcd
  3. C
    adcb
  4. D
    The current will reverse its direction as the electron goes past the coil

Solution & Step-by-step Explanation

As the electron approaches the coil, the magnetic flux linked with the coil increases, inducing a current in one direction (to oppose the increase). As the electron moves away, the flux decreases, inducing a current in the opposite direction (to oppose the decrease).
image

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An electron moves on a straight line path as shown. The is a coil adjacent to the path of electron. What will be the direction of current, if any, induced in the coil?
image
A
No current induced
B
abcd
C
adcb
D
The current will reverse its direction as the electron goes past the coil

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electromagnetic inductionlenz's law

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