Question:medium
The resistance of the tungsten wire in the light bulb, which is rated at $120$ V/$75$ W and powered by a $120$ V direct-current supply, is
The resistance of the tungsten wire in the light bulb, which is rated at $120$ V/$75$ W and powered by a $120$ V direct-current supply, is
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For electrical appliances, use $R = \frac{V^2}{P}$ when voltage and power rating are given.
Updated On: May 1, 2026
- $0.37\,\Omega$
- $1.2\,\Omega$
- $2.66\,\Omega$
- $192\,\Omega$
- $9 \times 10^3\,\Omega$
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The Correct Option is D
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