Question

Five 6 ohm resistors are connected in parallel. Which of the following is their effective resistance?

A. 6 ohm​​
B. 1.2 ohm​​
C. 30 ohm​​
D. 5/6 ohm

Answer 1

1/Rt = 1/R1 + 1/R2 + 1/R3+ 1/R4+ 1/R5

1/Rt = 1/6+ 1/6+1/6+1/6+1/6

1/Rt = 5/6

Rt = 6/5

Rt = 1.2 ohm

so B is the answer