Question
Download Solution PDFCalculate the work done in a resistor of 10 ohm carrying 3 A of current in 3 hours.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct option is 4
Concept:
In the case of a resistor, the work done is converted into heat energy according to Joule's Law of Heating, which states that heat produced in a resistor is proportional to the square of the current (I), the resistance (R), and the time (t) it flows.
The heat produced by an electric current, I, through a wire of resistance, R for a time, t is given by
H = I2Rt
H = 32 × 10 × 3
= 270 Wh
= 0.27 kWh
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