Question

!!! URGENT!!! A battery of internal resistance 4Ω is connected in the network of resistance as shown (link attached). In order to give maximum power to the network, the value of R should be what?

Answer 1

Answer:

The given circuit is a balanced Wheatstone bridge. [Fig. 1]

No current will flow across 6R o the side CD. [Fig. 2]

∴ The equivalent circuit is:- [Fig. 3]

For maximum power net external resistance=Total internal resistance

∴(3R∥6R)Ω=4Ω

⟹

3R+6R

3R×6R

Ω=4Ω

⟹R=2Ω

therefore, your answer is 2