A resistance of 2 Ω is connected across one gap of a meter bridge, the length of wire is…
Physics · JEE Main · NTA Exams — Current Electricity
A resistance of 2 Ω is connected across one gap of a meter bridge, the length of wire is 1 meter, and an unknown resistance, greater than 2 Ω is connected across the other gap. When these resistances are interchanged, the balance point shifts by 20 cm. Neglecting any correction, find the unknown resistance.
- 3 Ω
- 4 Ω
- 5 Ω
- 6 Ω
Answer
(A) 3 Ω
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