MHT CET202313 May 2023Evening ShiftPhysicsCurrent ElectricityActual
Only 4 % of the total current in the circuit passed through a galvanometer. If the resistance of the galvanometer is G , then the shunt resistance connected to the galvanometer is
Options
- AG 25
- BG 24
- C24 G
- D25 G
Correct answer
B. G 24
Step-by-step solution
Relationship between the shunt resistance and galvanometer resistance is S = I ₀ G I - I _ G ....(i) I _ g = 4 100 I =0.04 I I I _ g =25 ....(ii) Putting (ii) into (i) S = G I I _ g -1 = G 25-1 = G 24