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Q.

Select the correct statements :

            I) The drift velocity of electrons in a metallic wire is very high.

            II) Voltage is not proportional to current in the case of non-ohmic devices

            III) Voltage is equal to product of resistance and current

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a

Only III is correct

b

All are correct

c

I and II correct

d

II and III are correct

answer is B.

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Detailed Solution

Voltage is not proportional to current in the case of non-ohmic devices.

            Voltage is equal to product of resistance and current

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