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An elecric bulb is connected to a source of 220 volt and the current flowing through the circuit is 0.5 ampere. What will be the resistance and power of the bulb? |
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Answer» Explanation: power is a voltage MULTIPLIED by current at 220V with 0.5 current power is 100W R= V/I 5/5m = 1k own power is 5v×500mA=2.5mW |
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