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When electrons drift in a metal from low...

When electrons drift in a metal from lower to higher potential, does it mean that all the 'free' electrons of the metal are moving in the same direction ?

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All the free electrons are not moving in the same direction. In fact, the drift velocity is superposed over the large random velocities of electrons.
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(a) In Example 3.1, the electron drift speed is estimated to be only a few mm s^(-1) for currents in the range of a few amperes? How then is current established almost the instant a circuit is closed? (b) The electron drift arises due to the force experienced by electrons in the electric field inside the conductor. But force should cause acceleration. Why then do the electrons acquire a steady average drift speed? (c) If the electron drift speed is so small, and the electron’s charge is small, how can we still obtain large amounts of current in a conductor? (d) When electrons drift in a metal from lower to higher potential, does it mean that all the ‘free’ electrons of the metal are moving in the same direction? (e) Are the paths of electrons straight lines between successive collisions (with the positive ions of the metal) in the (i) absence of electric field, (ii) presence of electric field?

Free electrons travel to region of higher potential or lower potential.

Do free electrons travel to region of higher potential or lower potential?

The drift speed of an electron in a metal is in the order of

How does a free electrons at rest move in an electric filed.

When a current is established in a wire, the free electrons drift in the direction opposite to the current, Does the number of free electrons in the wire continuously decrease?

U-LIKE SERIES-CURRENT ELECTRICITY -LONG ANSWER QUESTIONS - I
  1. The electron drift arises due to the force experienced by electrons in...

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  2. If the electron drift speed is so small and the electron's charge is s...

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  3. When electrons drift in a metal from lower to higher potential, does i...

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  4. Are the paths of electrons straight lines between successive collision...

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  5. Define the terms (i) drift velocity, (ii) relaxation time. A conducto...

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  6. Derive an expression for the resistivity of a good conductor in terms ...

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  7. Define relaxation time of the free electrons drifting in a conductor. ...

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  8. Define the term current density of a metallic conductor. Deduce the re...

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  9. (a) Deduce the relation between current I flowing through a conductor ...

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  10. (a) Define the term conductivity of a metallic wire. Write its SI unit...

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  11. A cell of emf epsi and internal resistance 'r' is connected across a...

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  12. A number of identical cells, n, each of emf epsi , internal resistance...

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  13. Two cells of emf epsi1 and epsi2 having internal resistances r1 and ...

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  14. (a) The potential difference applied across a given resistor is altere...

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  15. The temperature coefficient of resistivity for two materials A and B a...

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  16. In the circuit shown , find the current through resistors.

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  17. Use Kirchhoff's rules to obtain the balance condition in a Wheatstone ...

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  18. With the help of a circuit diagram, explain the working principle of m...

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  19. State the working principle of a potentiometer. With the help of the c...

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  20. Write the principle of working of a potentiometer. Describe briefly, w...

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