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MBD-MAGNETIC EFFECTS OF ELECTRIC CURRENT-EXAMPLE
- What is a dynamo?
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- On what principle is a.c.motor based?
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- What is an electric motor?
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- List three sources of magnetic field.
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- Name the physical qanitity whose S.I. unit is weber/m^2.
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- In which part of a bar magnet,The magnetic field lines are more denser...
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- How does the strength of the magnetic field at the centre of a circula...
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- Name any two devices which uses electric motor as an essential compone...
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- Define an elelctromagnet
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- Define magnetic pole.
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- Name two electric devices which act on magnetic effect of electric cur...
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- What is electric fuse?Why is its important?
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- Which electrical phenomenon is responsible for deflection of galvonome...
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- The direction of magnetic field produced on passing electric current i...
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- The direction of the force produced in a current carrying coil placed ...
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- What is the colour of neutral wire in a domestic electric circuit?
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- When a current carrying wire and neutral wire come in contact so that ...
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- Connecting metallic frame of high power electrical appliances with the...
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- Which of the following is source of direct current?
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- The device used for producing electric current is called:
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