Question

What is different of ammeter voltmeter and wattmeter

Answer 1

ammeter - it measures the current in a circuit.
voltmeter- it measures the voltage between two points in a circuit
wattmeter - it measures the power in a electric circuit

Answer 2

1) Ammeter is used to measure current in the circuit.

2) Ammeter is always connected in series combination.

1) Voltmeter is used to measure the voltage or potential in the circuit.

2) It is always connected in parallel combination.

1) Wattmeter is used to measure power in electric circuit.