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.
A. 3.2Ω
B. 1.4Ω
C. 3.21Ω
D. 1.2Ω
Correct Answer: Option D
D. 1.2Ω
Explanation:
R/3.6=75/25=1/3
3R = 3.6
R = 1.2Ω
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