Answer to Question #280582 in Electric Circuits for ali

Question

A certain Resistor is required to dissipate

0.25W. What standard rating should be used?

Answer 1

Power rating of a resistor serves to tell the maximum amount of power that the resistor can withstand

If maximum allowable amount of power is exceeded, current can melt components and possibly create shorts in a current.

Resistor wattage rating is the amount of heat that a resistive element can dissipate for undefined period of time without degrading its performance.

The standard power rating of 0.25w is ;

$\frac{1}{4}$ Watts