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State Fleming's left-hand rule....

State Fleming's left-hand rule.

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Write Fleming's left hand rule.

Describe the activity that shows that a current-carrying conductor experiences a force perpendicular to its length and the external magnetic field. How does Fleming's left-hand rule help us to find the direction of the force acting on the current carrying conductor?

LAKHMIR SINGH & MANJIT KAUR-MAGNETIC EFFECT OF ELECTRIC CURRENT -Exercise
  1. Fill in the following blanks with suitable words : (a) Fleming's Rul...

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  2. (a) A current-carrying conductor is placed perpendicularly in a magnet...

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  3. State Fleming's left-hand rule.

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  4. What is the principle of an electric motor ? Name some of the devices ...

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  5. (a) In a d.c. motor, why must the current to the coil be reversed twic...

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  6. (a) State what would happen to the direction of rotation of a motor if...

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  7. (a) What is an electric motor ? With the help of a labelled diagram, d...

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  8. In an electric motor, the direction of current in the coil changes onc...

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  9. An electron beam enters a magnetic field right angles to it as shown i...

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  10. The force experienced by a current-carrying wire placed in a magnetic ...

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  11. The force experienced by a current-carrying wire placed in a magnetic ...

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  12. A current flows in a wire running between the S and N poles of a magne...

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  13. A electric motor is a device which transforms :

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  14. A magnetic field exerts no force on

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  15. A horizontal wire carries a current as shown as shown in Figure below ...

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  16. If the current in a wire is flowing in the vertically downward directi...

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  17. Which way does the wire in the diagram below tend to move ?

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  18. Name the derive which converts mechanical energy into electric energy.

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  19. Out of an A.C. generator and a D.C. generator : (a) which one uses a...

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  20. Name the phenomenon which is made use of in an electric generator.

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