Mathematics · Electric Current and Power
An incandescent electric bulb converts 20% of its power consumption into light, and the remaining power is dissipated as heat. The bulb's filament has a resistance of 200 Ω and a 2 A current flows through it. If the bulb remains ON for 10 h and the rate of electricity charge is Rs. 5/unit, then which among the following is the correct amount for the money spent on producing light?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Rs. 8✓
- 2Rs. 7
- 3Rs. 6
- 4Rs. 5
Correct answer
Rs. 8
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