Question 297: Current Electricity

Question

A current of 2 mA was passed through an unknown resistor which dissipated a power of 4.4 W. Dissipated power when an ideal power supply of 11 V is connected across it is -

Accepted Answer

P = I
2
R
4.4 = 4 $$ 	imes $$ 10
$$-$$6
R
R = 1.1 $$ 	imes $$ 10
6
$$\Omega $$
P' = $${{{{11}^2}} \over R}$$ = $${{{{11}^2}} \over {1.1}}$$ $$ 	imes $$ 10
$$-$$6
= 11 $$ 	imes $$ 10
$$-$$5
W

Answer

11 $$ 	imes $$ 10–5 W

Answer

11 $$ 	imes $$ 10–3 W

Answer

11 $$ 	imes $$ 105 W

Answer

11 $$ 	imes $$ 10–4 W

Current Electricity

A current of 2 mA was passed through an unknown resistor which dissipated a power of 4.4 W. Dissipated power when an ideal power supply of 11 V is connected across it is -

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