To explain: Whether the induced current exists in the loop or not when the flux through the loop is zero.
Answer to Problem 1CQ
The induced current doesn’t exist in the loop when the flux through the loop is zero.
Explanation of Solution
Formula used:
Consider the equation for induced current.
Here,
Consider the equation for emf.
Here,
Explanation:
Substitute equation (2) in equation (1),
The magnetic flux through the coil of wire is zero that is,
Substitute 0 for
Since the magnetic field in the coil is zero, so the induce current in the coil will also be zero.
Conclusion:
Hence, the induced current doesn’t exist in the loop when the flux through the loop is zero.
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