Home
Class 10
PHYSICS
Would electrons move from higher potenti...

Would electrons move from higher potentials to lower potentials or vice-versa?

Text Solution

Verified by Experts

Since electrons are negative they should be repelled by the negative charge and attracted by the positive charge, that is, in an electric field the electrons must move from regions of low potential (negative charge) to the regions with high potential (positive charge) by the action of the electrical forces.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ELECTRICITY

    ZEN PUBLICATION|Exercise ZEN ADDITIONAL QUESTIONS SECTION (SHORT ANSWER TYPE 1 QUESTIONS)|40 Videos

  • ELECTRICITY

    ZEN PUBLICATION|Exercise ZEN ADDITIONAL QUESTIONS SECTION (SHORT ANSWER TYPE 2 QUESTIONS)|24 Videos

  • ELECTRICITY

    ZEN PUBLICATION|Exercise QUESTIONS SECTION (TEXTUAL EXERCISE)|36 Videos

  • LIGHT - REFLECTION AND REFRACTION

    ZEN PUBLICATION|Exercise ZEN ADDITIONAL QUESTIONS SECTION (LONG ANSWER [LA] QUESTIONS)|30 Videos

Similar Questions

Explore conceptually related problems

Would electrons move from higher potentials to lower potentials and not vice-versa?

(a) 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 instnat a circuit is closed ? (b) The electron drift arises due to the force expectenced by electrons in the electric field inside the conductor. But force should cause acceleration. Why then do the electrons acqutre a steady average drift speed ? (c ) If the electron drift speed is so small, and the electrons'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 (witht the positive ions of the metal) in the (i) absence of electric field, (ii) presence of electric field ?

Knowledge Check

  • A ball of mass 1g and charge 10^(-8) C moves from a point A whose potential is 600V to the point B whose potential is zero. Velcoity of the ball at the point B is 20 cm s^(-1) . The velocity of the ball at the point is

    A
    `2.8 ms^(-1)`
    B
    `2.8 cm s^(-1)`
    C
    `16.7 m s^(-2)`
    D
    `16.7 cm s^(-1)`

  • A solid sphere of radius R is charged uniformly . At what distance from its surface is the electrostatic potential half of the potential at the centre ?

    A
    R
    B
    R/2
    C
    `4/3R`
    D
    `2R`

  • Find the frequency of light which ejects electrons from a metal surface, fully stopped by a retarding potential of 3V. The photoelectric effect begins in this metal at frequency 6xx10^(14)s^(-1)

    A
    `10^(5)`
    B
    `10^(16)`
    C
    `1.324xx10^(15)`
    D
    none of these.

    • Similar Questions

    Explore conceptually related problems

    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?

    [A]: Passive absorption of a substance occurs from its lower to higher chemical poten- tial across the membrane. [R]: Active absorption occurs across a mem- brane from its higher to lower chemical po- tential i:e., along the concentration gradient

    Which of the following has the higher water potential ?

    Given below is a figure of solution A & B . Which of the following are true for solution B (i) Solution B has a higher water potential (ii) Solution B has lower solute potential (iii) Solution B has higher DPD (iv) Solution B has lower OP (v) Its Psi_(s) has a negative value

    Which one of the following has the potential to be an important source of protein because it has 10 times higher yield than wheat ?

    Home
    Profile