a bulb of 100W and anather bulb of 200W , rated supply
voltage 230v.when supply voltage is reduced to 100v,which
bulb will give more light? and why with calculation?
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Answer Posted / skimatix
At 230V a 100W bulb will draw ~ 434mA
At 230V a 200W bulb will draw ~ 869mA
By reducing the voltage the current will rise, P = VI.
At 100V a 100W bulb will draw = 1A
At 100V a 200W bulb will draw = 2A
| Is This Answer Correct ? | 6 Yes | 3 No |
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