Electromagnetic Induction - Result Question 3
3. An electron moves on a straight line path XY as shown. The abcd is a coil adjacent to the path of electron. What will be the direction of current if any, induced
[2015 RS] (a) adcb
(b) The current will reverse its direction as the electron goes past the coil
(c) No current induced
(d) abcd
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Answer:
Correct Answer: 3. (b)
Solution:
- (b) Current will be induced, when $e^{-}$comes closer the induced current will be anticlockwise
when $e^{-}$comes farther induced current will be clockwise
Presence of magnetic flux is not enough. The amount of magnetic flux linked with the coil must change in order to produce any induced emf in the coil.
