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The magnitude of the induced electric field in the orbit at any instant of time during the time interval of the magnetic field change is

1. BR / 4
2. BR / 2
3. BR
4. 2BR

Correct answer: BR / 2

Solution

The induced electric field is generated due to the changing magnetic field, and its magnitude can be calculated using the formula E = RB/2, where R is the radius of the orbit and B is the magnetic field strength.

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