A 3.0-A current is maintained in a simple circuit that consists of a resistor between the terminals of an ideal battery. If the battery supplies energy at a rate of 25 W, how large is the resistance?
A)0.40 $\varOmega$
B)0.80 $\varOmega$
C)2.4 $\varOmega$
D)4.2 $\varOmega$
E)8.8 $\varOmega$

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The Answer of A 3.0-A current is maintained in a simple circuit that consists of a resistor between the terminals of an ideal battery. If the battery supplies energy at a rate of 25 W, how large is the resistance?
A)0.40 $\varOmega$
B)0.80 $\varOmega$
C)2.4 $\varOmega$
D)4.2 $\varOmega$
E)8.8 $\varOmega$

A 30-A Current Is Maintained in a Simple Circuit That Consists