Question

This question relates to the DC circuit shown below.
The values for current, voltage, and resistance in the circuit are graphed from point A through point G in the graphs directly below.
Which of the graphs shows the voltage from point A to point G?

• A. A
• B. B
• C. C
• D. D
• E. E

Answer 1

The correct option is A A

Here the current through entire circuit is constant and the resistance is increasing from A to G. So by Ohm's law, the voltages throughout the circuit will decrease as the distance from point A increases. Thus, each increase in the resistance produces a corresponding decrease in voltage. So graph A will be the correct.