5 points
3. If you have three 15 ohm resistors wired in parallel, what will the
equivalent (total) resistance be?
a. 45 ohms
b. 3.33 ohms
c. 14.6 ohms
d. 5 ohms
Other:

d. 5 ohms

Explanation:

For resistors in parallel, the equivalent resistance is found with:

1/Req = ∑(1/R)

1/R = 1/15 + 1/15 + 1/15

1/R = 3/15

R = 15/3

R = 5

grav force prop 1/r squared 2r all squared is 4rsquared 1/4rsquared quartered