What is heaters resistance-what current does heater carry

Reference no: EM13667812

A 100-W heater is designed to operate by an applied voltage of 120V.

1) What is the heater's resistance, and what current does the heater carry?

2) Show that if the potential difference V across the heater changes with a small amount ΔV, the power P changes by a small amount ΔP, where ΔP/P = 2ΔV/V. (Hint: Approximate the changes with modelling them as differentials, and suppose the resistance is constant.

3) Using the part b result, discover the approximate power delivered to the heater if the potential dissimilarity is decreased to 115V.Compare your result to the exact answer.

Reference no: EM13667812

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