Find by what percentage does the power delivered

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Reference no: EM13706392

Solve the given question:

Question: In an automobile, the system voltage varies from about 12 V when the car is off to about 14.1V when the car is on and the charging system is in operation, a difference of 18%.

Part A: By what percentage does the power delivered to the headlights vary as the voltage changes from 12 V to 14.1V? Assume the headlight resistance remains constant.

I know the correct answer but explain how to get this answer!

Reference no: EM13706392

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