In a slide wire bridge, the balance is obtained at a poin...
In a slide wire bridge, the balance is obtained at a point 25cm from one end of wire 1m long. The resistance to be tested is connected to that end and a standard resistance of 3.6Ω is connected to the other end of the wire. Determine the value of the unknown resistance
3.2Ω
1.4Ω
3.21Ω
1.2Ω
Correct answer is D
R3.6=7525=13
3R = 3.6
R = 1.2Ω