When two 1-ohm resistors are connected in series,their combined resistance is
A)1 ohm,and when connected in parallel,2 ohms.
B)2 ohms,and when in parallel,1 ohm.
C)1/2 ohm,and when in parallel,2 ohms.
D)2 ohms,and when in parallel,1/2 ohm.
E)none of these

Question

Quizplus · Accepted Answer

When resistors are connected in series, their resistances add up, so two 1-ohm resistors in series have a combined resistance of 2 ohms. When connected in parallel, the combined resistance is given by the reciprocal of the sum of the reciprocals of the individual resistances, which results in 1/2 ohm for two 1-ohm resistors.

When Two 1-Ohm Resistors Are Connected in Series,their Combined Resistance