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State whether the following statements a...

State whether the following statements are true or false :
An electromagnet does not attract a piece of iron.

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LAKHMIR SINGH & MANJIT KAUR-Electric Current And its Effects-EXERCISE
  1. State whether the following statements are true or false : The heati...

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  2. State whether the following statements are true or false : Compact ...

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  3. State whether the following statements are true or false : An elect...

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  4. State whether the following statements are true or false : An electr...

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  5. State whether the following statements are true or false : An electr...

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  6. Name two effect produced by electric current.

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  7. Which effect of electric current is utilised : in an electric iron ?

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  8. Which effect of electric current is utilised : in an electric bulb ?

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  9. Name the alloy which is used to make the heating elements of electrica...

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  10. Name the metal which is used to make the filament of an electric bulb.

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  11. Which effect of electric current is used in the working of an electric...

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  12. What is the full form of CFL ?

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  13. Name the phenomenon which occurs : when the two naked wires of elect...

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  14. Name the phenomenon which occurs : when too many electrical applianc...

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  15. What is the name of a safety device which cuts off the electricity sup...

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  16. What is the name of a safety device which cuts off the electricity sup...

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  17. Name the device which is being used increasingly in place of fuse.

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  18. Which important discovery was made by Oersted ?

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  19. Name the scientist who discovered the magnetic effect of current.

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  20. What name is given to the following arrangement ? A coil of insulate...

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