Question

Two resistances 40ohm and 80ohm are connected in parallel across a potential
difference of 200volt. How much current is flowing in the circuit?​

Answer 1

Answer:

7.5A

Explanation:

1÷r=1÷40+1÷80

1÷r=1÷40(3÷2)

r=80/3 ohm

i=v/r

i=200÷80/3

i=200×3÷80

i=15/2=7.5A

Answer 2

Answer:

7.5 A

Explanation:

1/R equivalent = (1/40) + (1/80) = 3/80 ohm

R equivalent = 80/3 ohm

V = 200volt

Current flowing through the circuit = 200v/(80/3)ohm

= 200 ×3/80 A = 600/80 A = 30/4 A

= 7.5 A

I hope I am correct.