circuit question?

1 ⤊

a circuit contains 2 devices that are connected in parallel if the resistance of one of these devices is 12 ohms and the resistence of the other is 4 ohms the total resistance of the two devices is

a.0.0625ohms
b.0.333ohms
c.3ohms
d.16ohms

2007-05-30 07:27:35 · 2 answers · asked by Miss Mika 1 in Consumer Electronics ➔ Other - Electronics

2 answers

c

The formula is 1 divided by 1/r1 + 1/r2

2007-05-30 07:33:54 · answer #1 · answered by I Like Stories 7 · 1⤊ 0⤋

2007-05-30 14:30:25 · answer #2 · answered by Anonymous · 0⤊ 1⤋