Question

1. What is an ammeter?
2. What is voltmeter?
3. What is the use of A.C circuit in the live wire?
4. What is the use of M.C.B?
5. Symbol of galvanometer

Answer 1

ammeter is device to measure electric current and voltmeter is used to measure potential difference between to point carrying charge.live wire carries positive charge and us of red color .mcb regulate the flow of current in the circuit.G

Answer 2

Ammeter is an instrument for measuring the strength of an electric current.

Voltmeter is an instrument for measuring voltage.

M.C.B. known as miniature circuit breakers automatically switches off the electrical circuit during abnormal condition of the network means in over load condition as well as faulty condition.