When a 10-V battery is connected to a resistor, the current in the resistor is 2 A. What is the resistor's value?
A) 5 ohms
B) 20 ohms
C) 2 ohms
D) 10 ohms
E) more than 20 ohms

Question

Quizplus · Accepted Answer

The resistor's value can be calculated using Ohm's Law, V = IR, where V is the voltage (10 V), I is the current (2 A), and R is the resistance. Solving for R gives R = V/I = 10V / 2A = 5 ohms.

When a 10-V Battery Is Connected to a Resistor, the Current