The current, in amperes, for a piece of wire with an electromotive force of 82 volts, is given by the function $C(r)=\frac{82}{r}$, where $r$ is the resistance of the wire in ohms. What is the current, rounded to the nearest hundredth of an ampere, if the wire has a resistance of 16 ohms?
A) 5.06 amperes
B) 5.37 amperes
C) 51.25 amperes
D) 5.13 amperes

Question

Quizplus · Accepted Answer

To find the current, substitute $r = 16$ ohms into the given function: $C(16) = \frac{82}{16} = 5.125$ amperes. Rounded to the nearest hundredth, this is 5.13 amperes.

The Current, in Amperes, for a Piece of Wire with an Electromotive