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3 September, 07:56

The power in an electrical circuit is given by the equation P = I2R, where I is the current flowing through the circuit and R is the resistance of the circuit. i. What is the power in a circuit that has a current of 12 A and a resistance of 100 Ω? (Note: 1 A2·Ω = 1 W) ii. What is the current in a circuit that has a power of 200 W and a resistance of 150 Ω?

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  1. 3 September, 09:12
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    Explanation: Here we have given a direct equation. There for no need to worry.

    P = I²*R

    P = (12) ² * 100

    P = 14400W = 14.4 kW

    For second one

    P = I² * R

    200 = I²*150

    I = √200/150

    I = 1.15 A
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