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

Multiple Choice

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 $\varOmega$