Question

Please find R and how to do it

Answer 1

Answer:

2

Explanation:

potential potential on the net of 2 ohm and r ohm resistance must be equal to the net potential difference minus potential difference at different points of the circuit so it is 2 -. 75 -1 and this gives the potential at this the net of these two resistance and since the current in the circuit is. 25 ampere so that resistance must be equal to potential difference at the net resistance;upon current flowing through the net resistance so it comes out to be. 25 /. 25 which is equal to 1 and now the net resistance of the circuit is found by the using by using formula of parallel resistance and equating it 1 which gives answer as 2