The resistance of resistor 1 is twice the resistance of resistor 2.The two are connected in series and a potential difference is maintained across the combination.Then:
A)the current in 1 is twice that in 2
B)the current in 1 is half that in 2
C)the potential difference across 1 is twice that across 2
D)the potential difference across 1 is half that across 2
E)none of the above are true

Question

Quizplus · Accepted Answer

In a series circuit, the current through each resistor is the same. The potential difference (voltage) across a resistor is given by Ohm's law, V = IR. Since resistor 1 has twice the resistance of resistor 2 and they have the same current flowing through them, the potential difference across resistor 1 will be twice that across resistor 2.

The Resistance of Resistor 1 Is Twice the Resistance of Resistor