The resistance of resistor 1 is twice the resistance of resistor 2.The two are connected in parallel 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

When resistors are connected in parallel, the potential difference across them is the same. Thus, the ratio of the currents through the two resistors is inversely proportional to their resistances. Since resistor 1 has twice the resistance of resistor 2, the current through resistor 1 is half that through resistor 2. Therefore, option B is correct.

The Resistance of Resistor 1 Is Twice the Resistance of Resistor