Question

The device used for producing electric current is called

• A. Ammeter
• B. Generator
• C. Galvanometer
• D. Motor

Answer 1

The correct option is B

Generator

The explanation for the correct option:

In the case of option B.

Generator:

Cut section and armature winding diagram of Generator.

1. A generator is a kind of mechanical equipment that is based on the law of electromagnetic induction, which converts the mechanical form of energy into electrical energy.
2. There are two types of generators.

AC generator – AC generators are also known as alternators that convert mechanical energy into electrical energy in the form of alternating current. Kilo volt-amperes is the unit used for rating the AC generators.

DC generator – A DC generator is used for converting mechanical energy onto direct current electricity.

The explanation for the incorrect options:

In the case of option A.

Ammeter :

1. An ammeter is a device that is used to measure the current in a given circuit.
2. It is always connected in series with the required electrical element.
3. Thus, it is an incorrect option.

In the case of option C.

Galvanometer:

1. A galvanometer is a device used to signify the direction of the electric current in the circuit.
2. It is connected in series with the electrical equipment.
3. Thus, it is an incorrect option.

In the case of option D.

Motor:

1. Electric Motor is a device used to convert the given electrical energy to mechanical energy.
2. Force is generated within the motor through the interaction between a magnetic field and winding alternating (AC) or direct (DC) current.
3. Thus, it is an incorrect option.

Thus, the generator converts electrical energy into mechanical energy and it is used to generate electrical current.

Hence, the correct option is option B.