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प्रश्न
The device used for producing electric current is called a ______.
विकल्प
generator
galvanometer
ammeter
motor
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उत्तर
The device used for producing electric current is called a generator.
Explanation:
- A generator is a device that transforms mechanical energy into electrical energy.
- A galvanometer is a device that detects the existence of electricity in a circuit.
- An ammeter is a device that measures the amount of electric current flowing across a circuit.
- A motor is a piece of machinery that turns electrical energy into mechanical energy.
As a result, the generator is the correct solution.
संबंधित प्रश्न
Name some sources of direct current.
A coil of insulated copper wire is connected to a galvanometer. What will happen if a bar magnet is pushed into the coil?
Explain the underlying principle and working of an electric generator by drawing a labelled diagram. What is the function of brushes?
Name the phenomenon which is made use of in an electric generator.
What type of generator is used at Power Stations?
What is the major difference between the simple alternator and most practical alternators?
A d.c. generator is based on the principle of:
(a) electrochemical induction
(b) electromagnetic induction
(c) magnetic effect of current
(d) heating effect of current
State whether the following statement are true of false:
A miniature circuit breaker (MCB) works on the heating effect of current.
The current induced in a closed circuit only if there is ______.
What determines the frequency of a.c. produced in a generator?
What energy conversion does take place in a generator when it is in use?
Explain the construction and working of the following. Draw a neat diagram and label it.
Electric Generator (AC)
Explain the difference:
AC generator and DC generator.
A flat coil of wire rotates at a constant speed about an axis perpendicular to a uniform magnetic field. Draw a graph to show how the induced e.m.f. varies relative to the positions of the coil during its one complete rotation. At what position of the coil, the e.m.f. has the maximum value?
State change that you would make to convert an A.C. generator into a D.C. generator. Illustrate the change by a diagram.
The part of the AC generator that passes the current from the armature coil to the external circuit is ______.
Draw and label the diagram of an AC generator.
A coil of insulated copper wire is connected to a galvanometer. What will happen if a bar magnet is held stationary inside the coil?
An AC generator is provided with ______ slip rings that rotate with the coil.
State one factor that affects the magnitude of induced current in an AC generator.
