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At room temperature, copper has free el...

At room temperature, copper has free electron density of `8 . 4 xx 10^(28)m^(-3)` . The electron drift velocity in a copper conductor of cross-sectional area of `10^(-6)m^(2)` and carrying a current of 5.4 A , will be

A

4m-`s^(-1) `

B

0.4m-`s^(-1) `

C

4 cm-`s^(-1) `

D

0.4 mm-`s^(-1) `

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VGS PUBLICATION-BRILLIANT-ELECTRIC CURRENTT-EXERCISE
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  6. At room temperature, copper has free electron density of 8 . 4 xx 10^...

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  17. A current of 2A flows in a system as shown in the figure. The poten...

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  18. The current flowing through a lamp , marked as 60 W and 240 V is

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  19. The power of an electric bulb marked as 40 W and 200 V used in a circu...

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  20. In India, electricity is supplied for domestic use at 220V. It is supp...

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