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Is a wire carrying current charged?...

Is a wire carrying current charged?

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When a current flows through a wire, it does not get charged at any time, the number of electrons leaving the wire is equal to the number of electrons entering in the wire. Net charge on the wire is always zero.
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BETTER CHOICE PUBLICATION-ELECTRIC CURRENT, RESISTANCE AND E.M.F.-SHORT ANSWER TYPE QUESTIONS
  1. V-I graph for a mettalic wire at two different temperatures T1 and T2 ...

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  2. On what factors does the internal resitance of the cell depend?

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  3. Is a wire carrying current charged?

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  4. What is non-ohmic device? Give one example.

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  5. If the electron drift speed is so small and the electron's charge is s...

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  6. A large number of free electrons are present in metals. Why is there n...

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  7. Standard resistance coils are made of which materials and why ?

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  8. Discuss the effect of temperature on resistivity of metals.

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  9. Why conducting wires are made of copper?

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  10. What is the resistance of a conductor? State the factors on which resi...

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  11. What is the difference between e.m.f. and potential diffrence?

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  12. What are ohmic and non-ohmic resistors? Give one example of each.

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

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  14. Establish the relation between current and drift velocity?

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  15. Define drift velocity of electricity and establish its relation with v...

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  16. Obtain the condition fo rmaximum current through a resisitor, when a n...

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  17. Define internal resistance of cell and find an expression for it.

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  18. What is internal resistance of a cell? Derive an expression for it.

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  19. What is internal resistance of a cell? Derive an expression for it.

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  20. The internal resistance of a cell is the resistance of

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