MHT CET 2022 Physics question
Two known resistance are connected in two gaps of meter bridge. The null point is obtained at 20 cm from zero end. A resistance of 15 is connected in series with the smaller of the two. The null point shifts to 40 cm. The smaller resistance is
Answer: (A)
Solution
Let the smaller resistance be in the left gap and the larger in the right gap. Balance condition: . First case: , so . After adding 15 in
See the full step-by-step solution
Create a free account to read the complete working, and practise questions like this in a timed test.
Create a free account