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When is the force experienced by a curre...

When is the force experienced by a current-carrying conductor placed in a magnetic field is largest?

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LAKHMIR SINGH & MANJIT KAUR-MAGNETIC EFFECT OF ELECTRIC CURRENT -Exercise
  1. What produces magnetism in the human body ?

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  2. What is the full form of MRI ?

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  3. When is the force experienced by a current-carrying conductor placed i...

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  4. When is the force experienced by a current-carrying conductor placed i...

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  5. In a statement of Feming's left-hand rule, what do the following repr...

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  6. Name one device which works on the magnetic effect of current.

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  7. Name the device which converts electrical energy into mechanical energ...

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  8. A motor converts one form of energy into another. Name the two forms.

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  9. State whether the following statement is true or false : An electric...

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  10. For Fleming's left-hand rule, write down the three things that are 90^...

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  11. What is the other name of the split ring used in an electric motor ?

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  12. Of what substance are the brushes of an electric motor made ?

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  13. In an electric motor, which of the following remains fixed and which r...

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  14. What is the role of the split-ring in an electric motor?

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  15. Fill in the following blanks with suitable words : (a) Fleming's Rul...

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

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  17. State Fleming's left-hand rule.

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

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

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

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