हिंदी

Explain the Difference: Ac Generator and Dc Generator. - Science and Technology 1

Advertisements
Advertisements

प्रश्न

Explain the difference:
AC generator and DC generator.

अंतर स्पष्ट करें

उत्तर

  AC generator DC generator
i. It is used to produce alternating current. It is used to produce direct current.
ii. It has two simple ring-type commutators. It has a single split-ring commutator.
iii. Frequency of induced current is 50Hz. Frequency of induced current is 0Hz.
iv. Current changes its directions. Current flows in same direction.
shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 4: Effects of electric current - Exercises [पृष्ठ ६०]

APPEARS IN

बालभारती Science and Technology 1 [English] 10 Standard SSC Maharashtra State Board
अध्याय 4 Effects of electric current
Exercises | Q 4 | पृष्ठ ६०

संबंधित प्रश्न

Which sources produce alternating current?


The essential difference between an AC generator and a DC generator is that


Explain the underlying principle and working of an electric generator by drawing a labelled diagram. What is the function of brushes?


What change should be made in an a.c. generator so that it may become a d.c. 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. 


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 


The current induced in a closed circuit only if there is ______.


Draw a labelled diagram of a simple a.c. generator.


What energy conversion does take place in a generator when it is in use?


State one advantage of using a.c. over d.c.


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.


Draw a neat labeled diagram of an A.C. 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 true or false:

The frequency of AC is 50 Hz.


The part of the AC generator that passes the current from the armature coil to the external circuit is ______.


To convert an AC generator into DC generator ____________.


An AC generator is provided with ______ slip rings that rotate with the coil.


Observe the following diagram and answer the questions.

  1. Explain the construction of the equipment shown in the figure.
  2. How is AC generated?

State one factor that affects the magnitude of induced current in an AC generator.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×