The circuit diagram below shows a $6.0 V$ battery in a circuit with three resistors, labeled $1, 2,$ and $3$ .
If each resistor has a resistance of $6.0 o h m s$ what is the rate at which energy is used by resistor $2$ ?

1.0 W

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36.0 W

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6.0 W

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24.0 W

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18.0 W

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Solution

The correct option is D $6.0 W$
As $R_{1}, R_{2}$ and $R_{3}$ are in parallel combination therefore voltage across them will be same that is $V = 6.0 V$ ,
given $R_{2} = 6.0 Ω$
rate at which energy used by $R_{2}$ ,
$P = V^{2} / R_{2} = {6.0}^{2} / 6.0 = 6.0 W$

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The circuit diagram below shows a 6.0 V battery in a circuit with three resistors, labeled 1,2, and 3.If each resistor has a resistance of 6.0 ohms what is the rate at which energy is used by resistor 2?

The correct option is D 6.0W As R1,R2 and R3 are in parallel combination therefore voltage across them will be same that is V=6.0V , given R2=6.0Ω rate at which energy used by R2 , P=V2/R2=6.02/6.0=6.0W

The circuit diagram below shows a $6.0 V$ battery in a circuit with three resistors, labeled $1, 2,$ and $3$ .
If each resistor has a resistance of $6.0 o h m s$ what is the rate at which energy is used by resistor $2$ ?

The correct option is D $6.0 W$
As $R_{1}, R_{2}$ and $R_{3}$ are in parallel combination therefore voltage across them will be same that is $V = 6.0 V$ ,
given $R_{2} = 6.0 Ω$
rate at which energy used by $R_{2}$ ,
$P = V^{2} / R_{2} = {6.0}^{2} / 6.0 = 6.0 W$