In your physics lab, you are given a hand generator and an assortment of wires with different values of resistance. you connect the leads of the generator across each wire in turn, and in each case attempt to turn the generator handle at the same constant rate. you find that you must push harder on the handle when the leads of the generator are connected

lower resistance.

Explanation:

Here we connect the leads of generator across each wire in turn, and in each case attempt to turn generator handle at the same constant rate. Now , since the generator handle is rotated with the same rate the emf induced will same across each resistance and power generation will be maximum across the lowest resistance.Hence for rotating the handle more power is required. Therefore, we need to push harder on the lower resistance.

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this would be about 43%