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प्रश्न
An a.c. generator changes the ______energy to ______ energy.
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उत्तर
An a.c. generator changes the mechanical energy to electrical energy.
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संबंधित प्रश्न
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.
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.
Explain the construction and working of an electric generator (AC) with the help of a neat diagram.
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.
Draw and label the diagram of an AC generator.
Draw a neat diagram of an AC generator and explain its working.
A coil of insulated copper wire is connected to a galvanometer. What will happen if a bar magnet is withdrawn from inside the coil?
An AC generator is provided with ______ slip rings that rotate with the coil.
Observe the following diagram and answer the questions.
- Explain the construction of the equipment shown in the figure.
- How is AC generated?
