Which of the following will decrease the magnitude of eddy currents in a solid conductor?

Strong varying magnetic field

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Larger area of cross-section of conductor

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Smaller area of cross-section of conductor

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None of these

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Solution

The correct option is C Smaller area of cross-section of conductor
Smaller area of cross-section will increase the resistance of the object.

If resistance is increased, the magnitude of eddy current will decrease.

Hence, option $(C)$ is the correct answer.

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Which of the following will not increase the size and effect of eddy current?

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