Question

A current of 5amp flows through a resistance of 30 ohm what is the power consumed

Answer 1

Answer:

Explanation:power is I^2 * R

= 5[5][30] = 750W

Answer 2

Power consumed is 750 W

Explanation:

Given, Resistance = 30Ω

current through resistance = 5 A

$Power = I^{2} R$                            { I = current flowing through the resistance

=>  $P= 5^{2} * 30$                                                   R = Resistance }

=>  $P = 25* 30$

=>  $P = 750 W$

• So the power consumed by the given resistance is 750 W, Power is given as energy consumed per unit time taken through a resistance energy is dissipated in the form of heat hence most of the power is lost in the form of heat energy

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