heat energy is being produced in a resistance in a circuit of the rate of 90W the current in the circuit is 0.3A find the value of thr resistance
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Explanation:
Given,
current=0.3A
power=90W
To find :- resistance
power=current ²×resistance
90W =0.3²× resistance
90/0.3²=resistance
90/0.09= resistance
90×100/0.09×100= resistance
9000/9=resistance
resistance=1000 ohm
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