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Lenz's law
Concepts tested here
- Induced current from a moving charge
All Questions
2015 AIPMT-II 1 question
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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 in the coil?
As the electron approaches, the magnetic flux through the coil increases and a current is induced (in the direction abcd).
As the electron moves away, the flux through the loop decreases, so the induced current reverses its direction.