An electric bulb is rated at 60 watt, 240 volt calculate its resistance if the voltage drops to 192 volt calculate the power consumed and the current drawn by the bulb
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Originally :
Power = 60 W .
Voltage = 240 v .
Current = power / voltage
= 60 W / 240 v
= 1/4 A
= 0.25 A
If voltage became 192 v
Power = voltage × current
= 192 v × 0.25 A
= 192 v × 1/4 A
= 48 W
ANSWER:
48 W will be the current.
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