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The voltage-current variations of two me...

The voltage-current variations of two metallic wire X and Y at constant temperature is shown in fig Assumign that the wires have the same length and the same diameter, explain which of the two wires will have larger resisitivity.

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`R = (rhol)/(A), "so " rho prop R. "But" R_Y gt R_X.`
Because for same V, current in Y is less. So `rho_y gt rho_x.`
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CENGAGE PHYSICS-ELECTRIC CURRENT AND CIRCUIT-Exercise 5.1
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  3. A potential difference V is applied to copper wire fo diameter d and l...

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  4. A wire has a resistance R. What will be its resistace if (a) it is d...

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  5. The current in a wire varies with time according to the equation I = ...

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  6. The following table gives the length of three copper rods, their diame...

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  7. The current voltage graphs for a given metalic wire two different temp...

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  8. The voltage-current variations of two metallic wire X and Y at constan...

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  9. A beam contains 2.0xx10^8 doubly charged positive ions per cubic centi...

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  10. The current density across a cylindrical conductor of radius R varies ...

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  11. Shown a conductor of length l having a circular cross section. The rad...

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  12. If a copper wire is stretched to make it 0.1% longer wha is the percen...

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  13. A copper wire having cross- sectional area of 0.5 mm^2 and a lentgth o...

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  14. A copper wire having cross- sectional area of 0.5 mm^2 and a length of...

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  15. A conductive wire has resistance of 10 ohm at 0^@C and alpha is 1/273^...

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  16. What is the drift speed of the conduction electrons in a coopper wire ...

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  17. (a) At what temperature would the resistance of a copper conductot be ...

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  18. A potential difference is applied across the filament of a bulb at t =...

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