What instruments are used to measure current?

1. Ammeter: An instrument used to measure the flow of electric current in a circuit. It is connected in series with the circuit being measured.

2. Clamp meter: A type of ammeter that can measure current without the need to disconnect the circuit. It uses a clamp to measure the magnetic field generated by the current flowing through a conductor.

3. Hall effect sensor: A transducer that measures the magnetic field generated by current flowing through a conductor. It can be used to measure both AC and DC currents.

4. Shunt resistor: A precision resistor connected in parallel with a current-carrying circuit to measure the current flowing through it. The voltage drop across the shunt resistor is proportional to the current flowing through it.

5. Current transformer: A type of transformer that measures current by inducing a secondary current proportional to the primary current flowing through a conductor. It is commonly used in power distribution systems to measure high currents.

- Galvanometer
- Ammeter
- Clamp Meter