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प्रश्न
What change should be made in an a.c. generator so that it may become a d.c. generator?
उत्तर
By replacing the slip rings of an A.C. generator by a commutator, we can convert it into a D.C. generator.
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संबंधित प्रश्न
Name the device which converts mechanical energy into electric energy.
What is the major difference between the simple alternator and most practical alternators?
State whether the following statement are true of false:
A wire with a green insulation is usually the live wire.
What energy conversion does take place in a generator when it is in use?
State one advantage of using a.c. over d.c.
An a.c. generator changes the ______energy to ______ energy.
The given figures 1 to 3 show the working of a simple A.C. generator. Study the diagrams and answers of the following questions.
(i) State and explain the principle underlying the working of a simple generator.
(ii) Where is the loop of wire placed?
(iii) What happens when the loop is rotated?
(iv) Indicate the direction of the current flow through the wire for the first half of the turn (in first figure). Name and state the rule used in finding the direction of the current.
(v) Indicate the direction of the current for the case shown in second figure.
(vi) Indicate the direction of current in the outer circuit (i.e., electric bulb) in first and third figure.
(vii) What type of current is shown in the above diagrams? Explain.
A device for producing electric current is ______.
Draw and label the diagram of an AC generator.
To convert an AC generator into DC generator ____________.
