An electric blub consumes an energy of 200joules in in 1minute with a current of 0.5amper. Find the resistance of the blub?
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Explanation:
V=W/Q
By Ohm's law,
Q=It
Therefore, V=W/It
V=200/0.5*1
V=400 Volt(V)
Resistance, R=V/I
R=400/0.5
R=800Ω
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