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How much is the heat energy produced in 10 seconds in an electric iron having resistance 440 Ω, when a potential difference of 220 volt is applied across it?
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How much is the heat energy produced in 10 seconds in an electric iron...
The heat energy produced in 10 seconds is equal to the power produced in 10 seconds multiplied by 10.
The power produced in 10 seconds is equal to the current multiplied by the voltage, which is equal to (220 V) / (440 Ω) = 0.5 A.
Therefore, the heat energy produced in 10 seconds is equal to (0.5 A) x (220 V) x (10 s) = 1100 Joules.
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How much is the heat energy produced in 10 seconds in an electric iron having resistance 440 Ω, when a potential difference of 220 volt is applied across it?
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