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Define electrical conductivity of a meta...

Define electrical conductivity of a metallic wire. Write its SI unit.

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Reciprocal of resistivity of a conductor is called its conductivity. Alternatively conductance of a unit cube of a conductor is called its electrical conductivity. Its SI unit is `Sm^(-1)` .
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U-LIKE SERIES-CURRENT ELECTRICITY -VERY SHORT ANSWER QUESTIONS
  1. A wire of resistivity rho is stretched to twice its length. What will ...

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  2. electrical conductivity, has the SI unit "ohm-metre”. Identify the phy...

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  3. Define electrical conductivity of a metallic wire. Write its SI unit.

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  4. Show variation of resistivity of copper as a function of temperature i...

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  5. Show on a graph the variation of resistivity with temperature for a ty...

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  6. A wire of resistance 8R is bent in the form of a circle. What is the e...

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  7. Define the term 'drift velocity' of charge carriers in a conductor and...

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  8. Write the expression for the drift velocity of charge carriers in a co...

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  9. How does drift velocity of electrons in a metallic conductor vary with...

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  10. A conductor of length L is connected across d.c. source of emf epsi . ...

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  11. Two conducting wires X and Y of same diameter but different materials ...

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  12. I-V graph for a given metallic wire at two temperatures T1 and T2 is a...

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  13. Two wires of equal length, one of copper and the other of manganin hav...

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  14. Nichrome and copper wires of same length and same radius are connected...

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  15. Write an expression for the resistivity of a metallic conductor showin...

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  16. Why are alloys, manganin and constantan used to make standard resistan...

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  17. When electrons drift in a metal from lower to higher potential, does i...

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  18. How does the random motion of free electrons in a conductor get affect...

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  19. Define the term ‘Mobility' of charge carriers in a conductor. Write it...

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  20. How does the mobility of electrons in a conductor change, if the poten...

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