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Compute all parts of given question:

Question: A 460 W heating unit is designed to operate with an applied potential difference of 116 V.

Part A: By what percentage will its heat output drop if the applied potential difference drops to 112 V? Assume no change in resistance.

Part B: If you took the variation of resistance with temperature into account, would the actual drop in heat output be 1) larger or 2) smaller than that calculated in (a)?

I need tutor help to solve the above question and give the number of the correct answer.

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