the bulb is rated 60 watt. What does it mean?
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Explanation:
The rating 60 Watts means that the bulb will consume 60 Joules/sec and convert it into heat and light. Power = Voltage x Current. If the power supply is 120 Volt (It is usually 110–120 V in the US), then a current of 60/120 Ampere or 0.5 A will enter (and leave) the light bulb.
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Answer:
A 60 Watt 220V bulb means that it will consume 60 Watts when the voltage across it is 220V. In such a case the current flowing through it will be given by I= W/V = 60/220 = Amperes.
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