MHT CET 2024 Physics question
The resistances in the left and right gap of a metre bridge are 40 and 60 respectively. When the bridge is balanced, the distance of the null point from the centre of the wire towards left is
Answer: (B)
Solution
At balance in a metre bridge, , where is the length of wire measured from the left end. So , giving , so cm. The centre of the wire is at 50 cm, so the null point is
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