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The electrostatic force between two char...

The electrostatic force between two charges is governed by Coulomb.s law. On which factors does the electrostatic force between two charges depend and how?

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Electrostatic force between two charges is called central force. Why?

The electrostatic force between two point charges is directly proportional to the

Knowledge Check

  • If air is replaced by some other medium then the electrostatic force between two charges.

    A
    remains same
    B
    increases
    C
    decreases
    D
    increaces or decreases depending on the medium

  • The mutual inductance between two coils depends on

    A
    medium between the coils
    B
    sepration between the coins
    C
    orientation of the coils
    D
    all of the above factors

  • Coulomb's electrostatic force between two charges in SI system is given by F = (Xq_(1)q_(2))/r^(2) where the value of x is

    A
    4piepsilon_(o)
    B
    (1)/epsilon_(o)
    C
    (1)/(4 pi epsilon_(o)
    D
    (4 pi)/(epsilon_(o)

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    If the air medium between the two charges is replaced by water what change you expect in the electrostatic force and why?

    The electric force between two charges is _______ if a dielectric slab is introduced between them.

    Is the force between two parallel current carrying wires affected by the nature of the dielectric medium between them?

    Coulomb's law for electrostatic force between two point charges and Newton's law for gravitational force between two stationary point masses, both have inverse- square dependence on the distance between the charges / masses. (a) Compare the strength of these forces by determining the ratio of their magnitudes (i) for an electron and proton and (ii) for two protons. (b) Estimate the accelerations of electrons and protons due to the electrical force of the mutual attraction when they are 1 A^(o) = (10^(-10)m) apart? (m_(p) = 1.67 xx 10^(-27)kg) m_(e) = 9.11 xx 10^(-31)kg.

    Force between two identical charges placed at a distance of r in vacuum is F. Now a slab of dielectric of dielectric constant 4 is inserted between these two charges. If the thickness of the slab is r/2, then the force between the charges will become :

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