calculate the current drawn by an electric lamp from a 220 volt supply if the resistance of the lamp while growing is 220 Ohm
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The formula of voltage is V=IR
here we simply put in the values
V=220V
I=?
R=220ohm
so equation becomes
220V=220 ohm× xA(variable x taken for current)
x=220/220=1
The current drawn is 1 A
I kept this simple and easy to understand
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