The potential difference between the ends of a resistor is 9 V when a current of 1 A flows through it. What is the value of that resistor?
A) 9 Ω s
B) 9 Ω/s
C) 9 V∙s
D) 9 V/s
E) 9 Ω

Question

Quizplus · Accepted Answer

According to Ohm's law, the voltage (V) across a resistor is equal to the product of the current (I) flowing through it and its resistance (R): V=IR. Therefore, the resistance of the resistor is R=V/I=9/1=9Ω.

The Potential Difference Between the Ends of a Resistor Is