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  4. An electron moves along the line AB with constant velocity V which lies in the same plane as a circular loop of conducting wire, as shown in the figure. What will be the direction of current induced in the loop? <img class=img-fluid question-image alt=Question src=https://cdn.tardigrade.in/q/nta/p-spipvv9yfj9w.png />

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Q. An electron moves along the line $AB$ with constant velocity $V$ which lies in the same plane as a circular loop of conducting wire, as shown in the figure. What will be the direction of current induced in the loop?

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NTA AbhyasNTA Abhyas 2020

Solution:

The current will change direction as the electron passes by
As electron approaches the loop flux linked with the loop first increases and then decrease as electron passes by. Therefore direction of induced current changes.