A constant force F is being applied on a rod of length kept at rest on two parallel conducting rails connected at ends by resistance R in uniform kept at rest on two parallel conducting rails connected at ends by resistance R in uniform magnetic field B as shown

the power delivered by force will be constant with time

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the power delivered by force will be increasing first and then will decrease

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the rate of power delivered by the external force will be increasing continously

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the rate of power delivered by the external force will be decreasing continously

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Solution

The correct option is B the power delivered by force will be constant with time
The power delivered by the source will be constant because the magnetic field is uniform and the force is constant. Thus, the induced voltage remains constant and so does the power delivered by it.

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A constant force F is being applied on a rod of length kept at rest on two parallel conducting rails connected at ends by resistance R in uniform kept at rest on two parallel conducting rails connected at ends by resistance R in uniform magnetic field B as shown

The correct option is B the power delivered by force will be constant with timeThe power delivered by the source will be constant because the magnetic field is uniform and the force is constant. Thus, the induced voltage remains constant and so does the power delivered by it.

The correct option is B the power delivered by force will be constant with time
The power delivered by the source will be constant because the magnetic field is uniform and the force is constant. Thus, the induced voltage remains constant and so does the power delivered by it.