The circuit diagram below shows a 6.0V battery in a circuit with three resistors, labeled 1,2, and 3. If each resistor has a resistance of 6.0ohms what is the rate at which energy is used by resistor 2?
1.0W
36.0W
24.0W
6.0W
18.0W
A
6.0W
B
1.0W
C
24.0W
D
36.0W
E
18.0W
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Solution
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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
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