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Estimate the average drift speed of cond...

Estimate the average drift speed of conduction electrons in a copper wire of cross sectional area `1.0 times 10^-7 m^2` carrying a current of 1.5 A.Assume that the number density of conduction electrons is `9 times 10^25 m^-3` charge of an electron =`-1.6 times 10^-19C`.

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The correct Answer is:
`1.04 times 10^3 m.s^-1`
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Estimate the average drift speed of conduction electrons in a copper wire of cross sectional area 1 times 10^-7 m^2 carrying a current of 1.5 A.Assume that each copper atom contributes one conduction electron. The density of copper is 9 times 10^3 kg.m^-3 and its atomic mass is 63.5 u .

Estimate the average drilft velocity of conduction electrons in a copper wire of cross-section 20xx10^-3 cm^2 carrying a current of 20A. Assume the density of conduction electrons to be 9X10^28 m^3 .

Estimate the average drift speed of conduction electrons in a copper wire of cross-sectioal area 1.0xx10^(-7)m^2 carrying a current of 1.5 A. Assume that each copper atom contributes roughly one conduction electron. The density of copper is 9.0xx 10^3 kg//m^3 and its atomic mass is 63.5.

A copper wire of cross-sectional area 1 mm^2 carries a current of 0.21A Find the drift velocity of free electrons. Given density of free electrons in copper =8.84 times 10^(24)m^-3 and electronic charge e=1.6 times 10^-19 C .

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The number of free electrons per unit volume in a metallic conductor is 10^22 cm^-3 .The area of cross section of the conductor is 1mm^2 and the strength of current through the conductor is 1A. Determine the drift velocity of the free electrons,(Given that the charge of an electron -1.6 times 10^-19 C )

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CHHAYA PUBLICATION-CURRENT ELECTRICITY -EXERCISE ( PROBLEM SET-I)
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  2. Equivalent resistances of two resistors in their series and parallel c...

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  3. The equivalent resistances of two resistances in parallel combination ...

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  4. There are 14 resistances each of magnitude 1 Omega. Keeping three of t...

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  5. The resistance of an electrical appliance is 200 Omega and it can with...

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  6. The ratio of three resistances is 1:2:3 if the greatest resistance be ...

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  7. Emf of an electric cell is 2.1 V and its internal resistance is 0.1 Om...

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  8. Emf of an electric cell is 1.5 V and its internal resistance Is 2 Omeg...

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  9. A cell of emf 2.1 V and 0.1 Omega internal resistance sends 100 mA cur...

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  10. Electric current is sent through a resistance of 20 Omega from a batte...

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  11. Internal resistance of an electric cell is 1 Omega. Error is incurred ...

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  12. Current is sent from an electric cell of emf 30 V and of negligible in...

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  13. An electric cell of emf 2V and of negligible internal resistance is co...

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  14. Internal resistance of each of 30 identical cells is 3Omega. To get th...

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  15. Emf of each of 15 cells is 2V and internal resistance of each is 0.1 O...

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  16. 5 electric cells are connected in series .Emf of each cell is 1.5 V an...

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  17. When a resistance of 4.5 Omega is connected with 10 identical cells in...

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  18. Calculate the number of electrons crossing a given cross section in 1 ...

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  19. The number of free electrons per unit volume in a metallic conductor i...

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  20. Estimate the average drift speed of conduction electrons in a copper w...

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