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Find the equivalent of resistances of th...

Find the equivalent of resistances of the individual resistance connected in series?

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PUNJAB BOARD PREVIOUS YEAR PAPERS-Electric Current, Resistance and E.M.F. -Exercise
  1. Standard resistance coils are made up of which material why ?

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  2. What is the internal resistance of a cell ? Derive an expression for i...

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  3. Why connecting wires are made up of copper ?

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  4. What is the internal resistance of a cell ? Derive an expression for i...

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  5. What is e.m.f. of a cell ? On what factors does its value depend ?

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  6. Establish the relation between drift velocity of electrons and electri...

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  7. What do you mean by conductivity of a material? Give its SI unit.

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  8. What is effect of rise in temperature on the resistivity of metallic c...

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  9. What is meant by resistivity ? Write its S.I. unit.

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  10. What is the effect of rise in temperature on the conductivity of coppe...

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  11. What is meant by resistance of conductor and define its units.

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  12. What is effect of rise in temperature on the conductivity of metallic ...

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  13. Distinguish between emf and potential difference.

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  14. What is the internal resistance of a cell ? Derive an expression for i...

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  15. What is a drift velocity ? Establish the relations between the drift v...

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  16. State Ohm’s law. Derive the laws of resistance, when they are connecte...

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  17. State Ohm’s law. Derive the laws of resistance, when they are connecte...

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  18. Find the equivalent of resistances of the individual resistance connec...

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  19. With the help of a diagram derive the formula for the equivalent resis...

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  20. State Ohm’s law and derive it from the basic idea of drift velocity of...

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