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November 28, 2014

Homework Help: Physics

Posted by San on Tuesday, February 23, 2010 at 1:02pm.

A commercial resistor can safely dissipate power only up to a certain rated value. Beyond this value, the resistor becomes excessively hot and often cracks apart. The resistor used in this experiment was rated by the manufacturer to be a 2 watt resistor. What is the largest voltage that can safely be applied across the resistor? Hint: The power P dissipated by a resistor R is given by P = I2R = V2R = IV where I is the current and V is the voltage.

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