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प्रश्न
What energy conversion takes place during the working of a d c motor?
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उत्तर
Electrical energy to mechanical energy.
संबंधित प्रश्न
Suppose you are given a long bar magnet and you are asked to break it into four small magnets. Draw diagrams showing the polarities of each broken part.
Tick the most appropriate answer.
Which of the following methods is used to magnetize a magnetic without touching it by a magnet?
State two differences between an electromagnet and a permanent magnet.
Name the material of core in (a) an electric bell, (b) electromagnet, (c) a d.c. motor, (d) an a.c. generator and (e) a transformer.
State the purpose of the iron core.
Why is soft iron generally used as the core of the electromagnet?
State the position of armature coil relative to the direction of magnetic field, in a D. C. motor when the deflecting couple acting an the coil is maximum.
What are the factors that govern the magnitude of force acting on a current carrying conductor which is freely suspended in a magnetic field?
Which magnet will you use?
Iron is to be separated from trash.
Write the answer in your words.
How is an electromagnet made?
