Physics
Physics, 30.10.2019 04:31, BigGirlsTheBest

A504 w heating unit is designed to operate with an applied potential difference of 124 v. (a) by what percentage will its heat output drop if the applied potential difference drops to 115 v? assume no change in resistance. (b) if you took the variation of resistance with temperature into account, would the actual drop in heat output be larger or smaller than that calculated in (a)?

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