When the shunt resistance of the galvanometer circuit increased its?
When the shunt resistance of the galvanometer circuit increased its?
Right Answer is:
Current sensitivity decreases
SOLUTION
A Galvanometer is an electromechanical instrument used for detecting and indicating an electric current of upto 10−9 A.
- A galvanometer is converted into an ammeter by connecting a suitable small resistance (called sum) in parallel with the galvanometer.
- For measuring current in a circuit, an ammeter is connected in series with the circuit.
- In order that the insertion of an ammeter in the circuit does not affect the circuit current, it should have as low resistance as possible.
- So if the shunt resistance is increased the sensitivity of the galvanometer is decreased.