In the following circuit: a) How much combined resistance is there in total? b) What is the potential difference in combined resistance across the board?
In the following circuit: a) How much combined resistance is there in total? b) What is the potential difference in combined resistance across the board?

answer:

Given that Total current flowing through circuit, I = 6A

R1 = 3 Ω

R2 = 6 Ω

a) Combined resistance R is

1/R = 1/3 + 1/6 = 3/6

R = 2 Ω

b) Potential difference across the combined resistance = IR = 12V