If P and V are the power and potential of device, the power consumed with a supply potential V1 is
A. V21/V2 P
B. V2/V21 P
C. V/V1 P
D. V1/V P
Answer:A
If P and V are the power and potential of device, the power consumed with a supply potential V1 is
A. V21/V2 P B. V2/V21 P C. V/V1 P D. V1/V P