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Why are conductors different from insula...

Why are conductors different from insulators ?

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Conductors have free electrons, whereas insulators have none.
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PRADEEP-ELECTRICITY-(Additional)Very Short Answer
  1. Which material is the best conductor of electricity at room temperatur...

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  2. What is the resistance of an air gap ?

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  3. Why are conductors different from insulators ?

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  4. Is drift speed of electrons in a conductor carrying current the same a...

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  5. What sets the electrons into motion in an electric circuit ?

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  6. Why are filaments of incandescent lamps made of thin tungsten wire ?

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  7. Which are the metals that are generally used : (i) in electric circu...

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  8. Graphs between electric current and potential difference across two co...

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  9. Why is resistance more in series combination of resistors ?

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  10. Why is resistance less in parallel combination of resistors ?

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  11. How will you join three resistances, each of 2 Omega so that the effec...

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  12. On what factors does the resistivity of a material depend ?

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  13. What happens to the current in a circuit if its resistance is doubled ...

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  14. What happens to the resistance of a circuit if the current through it ...

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  15. What happens it the pd across a resistance is doubled ?

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  16. How does the resistance of a wire depend upon its radius ?

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  17. How does the resistance of a wire depend on its length ?

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  18. How does the resistance of a metallic wire depend on its temperature ?

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  19. Two wires are of the same length, same radius, but one of them is of t...

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  20. Find the potential difference required to pass a current of 0.2 A in a...

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