Consider a wire having current $$10A$$ having area of $$cross-section$$ $$1$$ $$cm2$$. If number of electrons per unit volume is $$9$$×$$1028m$$−$$3$$. Find the drift velocity of electrons:

Correct option is 16.94×10−6ms−1

Questions

Consider a wire having current 10A having area of cross-section 1 cm². If number of electrons per unit volume is $9 \times 10^{28} m^{- 3}$ . Find the drift velocity of electrons:

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6.94×10−6ms−1

1.94×10−3ms−1

5.94×10−2ms−

2.94×10−4ms−1

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detailed solution

Correct option is A

i=neAvdvd=ineAvd=6.94×10−6m/s

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Consider a wire having current 10A having area of cross-section 1 cm2. If number of electrons per unit volume is 9×1028m−3. Find the drift velocity of electrons:

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Ready to Test Your Skills?

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Consider a wire having current 10A having area of cross-section 1 cm². If number of electrons per unit volume is $9 \times 10^{28} m^{- 3}$ . Find the drift velocity of electrons: