Advertisements
Advertisements
प्रश्न
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.

Advertisements
उत्तर
a) The instrument shown in figure is generator.
b) This machine is used to generate electricity.
c) The generator generates electricity through following transformations :
Mechanical Energy → Electrical Energy
APPEARS IN
संबंधित प्रश्न
A rectangular coil of copper wires is rotated in a magnetic field. The direction of the induced current changes once in each______.
The device used for producing electric current is called a ______.
State whether the following statement is true or false.
An electric motor converts mechanical energy into electrical energy.
What type of generator is used at Power Stations?
Complete the following sentence:
A generator with commutator produces ............... current.
Explain the principle of an electric generator.
An electric generator converts:
(a) electrical energy into mechanical energy.
(b) mechanical energy into heat energy.
(c) electrical energy into chemical energy.
(d) mechanical energy into electrical energy.
The current induced in a closed circuit only if there is ______.
Draw a neat labeled diagram of an A.C. generator
Draw and label the diagram of an AC generator.
Draw a neat diagram of an AC generator and explain its working.
What are the number of turns and area specified for the armature coil?
In what direction are the magnetic field arrows drawn between the poles?
Which labels identify the two slip rings?
What does the external load do in an a.c. generator?
How does the armature coil move during the stated working of an a.c. generator?
What type of current flows in the external load?
What EMF results from differentiating the total flux linkage?
How is angular speed related to frequency of rotation \[n\]?
How is a generator driven in a hydroelectric plant?
