हिंदी

A electric bulb is rate 220 V, 60 W. its electric cell resistance is nearly

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प्रश्न

A electric bulb is rate 220 V, 60 W. its electric cell resistance is nearly

विकल्प

  • 0.807 Ω

  • 4 Ω

  • 708 Ω

  • 807 Ω

MCQ
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उत्तर

807 Ω

Explanation:

R = `V^2/p`

`(220)^2/60 = (220 xx 220)/60` = 807 Ω

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