Question

please give me answer fast

Answer 1

this is physics question & it's answer is option no. B

Answer 2

In this circuit two resistances each 4 ohm are in series

R = R1+R2

R = 4 + 4

R = 8 ohm

Again, R and a resistance of 8 ohm is in parallel

R’ = (8×8)/8+8

R’ = 4 ohm