Question

Plz answer fast.
Urgent.​

Answer 1

Answer:

1.5 ohm

Explanation:

the wheatstone bridge is on null point condition so no current to galvanometer ( here 2 ohm resistance between E and F)

so equivalent resistance of the bridge is 4×4/ 4+4 = 2 ohm

and total equivalent resistance of the circuit is

6×2 / 6+2 = 1.5 ohm