Question

4.3.2 test (cst): electromagnets
question 18 of 20
the voltage between two points in a circuit is 5 v. if the resistance between the points is 80 ω, what is the current, according to ohm’s law?
a. 400 a
b. 85.0 a
c. 0.063 a
d. 16.0 a

Explanation:

Step1: Recall Ohm's law formula

Ohm's law is \(I=\frac{V}{R}\), where \(I\) is current, \(V\) is voltage, and \(R\) is resistance.

Step2: Substitute the given values

Given \(V = 5\space V\) and \(R=80\space\Omega\). Substitute into the formula: \(I=\frac{5}{80}\).

Step3: Calculate the current

\(I=\frac{5}{80}= 0.0625\approx0.063\space A\)

Answer:

C. \(0.063\space A\)