Question

calculate total resistance and total current flowing through the circuit

Answer 1

The total resistance will be:18ohms
The total current will be:0.66amperes

Answer 2

(1)1/Rp = 1/10+1/40 = 5/40 = 1/8

Rp=8

Also, 1/Rp = 1/30+1/20+1/60 = 6/60 = 1/10

Rp=10

Therefore, total resistance 1/Rp =1/10+1/8 = 9/40

Rp= 40/9

(2)V=IR

I=V/R

I=12*9/40

I=54/25

Current is approximately 2.16A