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प्रश्न
The device used for producing electric current is called a ______.
पर्याय
generator
galvanometer
ammeter
motor
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.
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संबंधित प्रश्न
State the principle of an electric generator.
Name some sources of direct current.
Which sources produce alternating current?
A rectangular coil of copper wires is rotated in a magnetic field. The direction of the induced current changes once in each______.
State whether the following statement is true or false.
An electric motor converts mechanical energy into electrical energy.
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 function of brushes in an electric generator?
What is the major difference between the simple alternator and most practical alternators?
Why are Thermal Power Stations usually located near a river?
Complete the following sentence:
A generator with commutator produces ............... current.
Explain the principle of an electric generator.
State two ways in the which the current alternating current and direct current?
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
What determines the frequency of a.c. produced in a generator?
Draw a labelled diagram of a simple a.c. generator.
Explain the construction and working of the following. Draw a neat diagram and label it.
Electric Generator (AC)
Observe the figure and answer the following questions.
a) Identify the machine shown in figure.
b) Write a use of this machine.
c) How transformation of energy takes place in this machine.
State change that you would make to convert an A.C. generator into a D.C. generator. Illustrate the change by a diagram.
Observe the figure and write the answers to the questions asked.
- The construction shown in the figure is of which device?
- Explain the principle on which this device works.
- Write any three uses of this device.
The part of the AC generator that passes the current from the armature coil to the external circuit is ______.
Draw a neat diagram of an AC generator and explain its working.
To convert an AC generator into DC generator ____________.
Observe the following diagram and answer the questions.
- Explain the construction of the equipment shown in the figure.
- How is AC generated?
