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MAGNETIC EFFECTS OF ELECTRIC CURRENT
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MBD -HARYANA BOARD-MAGNETIC EFFECTS OF ELECTRIC CURRENT-Short Answer Type Questions
- Compare the permanent magnet and an electromagnet.
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- Why are coils of electric toasters and electric irons made of an alloy...
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- Write note on magnetic field in human being and animals.
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- A generator or dynamo works on the principle:
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- What are hazards of electricity ?
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- What the two main precautions to be taken while using an electric supp...
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- Distinguish between the terms 'overloading' and 'short-circuiting' as ...
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- Describe an experiment to illustrate the action of an electric fuse.
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- What is the necessity of earthing an electric appliance ?
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- State Fleming's left-hand rule.
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- Write Fleming's left hand rule.
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- What is the role of the split-ring in an electric motor?
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- Explain different ways to induce current in a coil.
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- Name some sources of direct current.
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- Which sources produce alternating current?
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- Name two safety measures commonly used in electric circuits and applia...
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- What precaution should be taken to avoid the overloading of domestic e...
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- State the right hand thumb rule.
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- Explain the use of Fleming,s right-hand rule in finding the direction ...
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- State one advantage of AC over DC.
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