Answer to Question #221975 in Electric Circuits for General Salim⚡️

Electric Circuits

Question #221975

An electric bulb is rated 60W and 120V. Calculate the resistance of its filament when it is operating normally

Expert's answer

Gives

P=60W

V=120v

We know that

"P=\\frac{V^2}{R}\\\\R=\\frac{V^2}{P}\\\\put value\\\\R=\\frac{(120)^2}{60}=240\\Omega"

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