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Mark 'True' or 'False' for following statement:
Electric current can flow through metals.

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The question given below consist of an assertion (A) and a reason ( R). Use the following key to choose the appropriate answer to these questions from the codes (a), (b), ( c) and (d) given below: Both A and R are true and R is the correct explanation of A. Both A and R are true but R is NOT the correct explanation of A. A is true but R is false. A is false and R is also false. Assertion: Insulators do not follow electric current to flow through them. Reason:Insulators have large number of free electrons.

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MBD-ELECTRICITY AND CIRCUITS-EXAMPLE
  1. Fill in the blank : A device that is used to break an electric circui...

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  2. Fill in the blank : An electric cell has ....... terminals.

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  3. Mark 'True' or 'False' for following statement: Electric current can...

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  4. Mark 'True' or 'False' for following statement: Instead of metal wire...

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  5. Mark 'True' or 'False' for following statement: Electric current can ...

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  6. Explain why the bulb would not glow in the arangement shown in figure...

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  7. Complete the drawing in fig. to indicate where the free ends of the t...

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  8. What is the purpose of using an electric switch? Name some electrical ...

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  9. Would the bulb glow after completing the circuit shown in fig, if inst...

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  10. Using the 'conduction tester' on an object it was found that the bulb ...

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  11. Why should an electrician use gloves while repairing an electric switc...

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  12. The handles of the tools like screw driver and pliers used by electric...

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  13. What are uses of electricity ?

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  14. Where does the torch get electricity from? Why do we need a switch in ...

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  15. Where are electricity cells used ?

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  16. Which is +ve terminal of an eletric cell ?

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  17. Which is -ve terminal of an electric cell ?

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  18. How is electricity produced in a n electric cell ?

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  19. When does an electric cell stop functioning ?

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  20. What is a electric circuit?

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