Question

R1 = 1Ω, R2 = 3Ω, R3 = 5Ω and R4 = 7Ω connected in parallel. Total Current = 23A. Then V, I1 , I2  =?

(a) 12.26v, 1.725, 2.875

(b) 12.23v, 2.875, 1.725

(c) 11.26v, 1.95, 1.74

(d) 11.23v, 1.74, 1.95

The question was asked during a job interview.

I need to ask this question from The Voltage Divider and Current Divider Circuits in chapter Simple Resistive Circuits of Electric Circuits

Answer 1

Correct option is (a) 12.26v, 1.725, 2.875

The explanation is: V = I/R

        V = I (R1  + R2) R1  R2  = 12.26v

         I1 = IR2/ R1  + R2 = 1.725A

        I2   = IR1/ R1  + R2

         = 2.875A.