How much current will an electric bulb draw from 220V source if
the resistance of the bulb is 800 Ω? If in place of bulb, a heater of
resistance 90 Ω is connected to the source, calculate the current
drawn by it.
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Explanation:
voltage=current*resistance
220=I*800
I=11/40amperes
for heater
220=I*90
I=22/9amperes
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