if a current passing through a bulb is 0.4A and the power of bulb is 4pW find out the voltage applied across the bulb
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Answer:
the voltage applied is 10^-11 V.
Explanation:
power, P = Voltage(V)× Current (I)
Voltage = power/Current
= 4 × 10^-12 /0.4 = 10^-11 V.
1PW= 10^-12 W.
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