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(a) Explain the meaning of the statement...

(a) Explain the meaning of the statement ‘electric charge of a body is quantised’. (b) Why can one ignore quantisation of electric charge when dealing with macroscopic i.e., large scale charges?

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(a) Electric charge of a body is quantized. This means that only integral (1, 2, …., n) number of electrons can be transferred from one body to the other. Charges are not transferred in fraction. Hence, a body possesses total charge only in integral multiples of electric charge.
(b) In macroscopic or large scale charges, the charges used are huge as compared to the magnitude of electric charge. Hence, quantization of electric charge is of no use on macroscopic scale. Therefore, it is ignored and it is considered that electric charge is continuous.
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Explain the meaning of the statement ' electric charge of a body is quantised' Why can one ignore quantisation of electric charge when dealing with macroscopic i.e., large scale charges ?

(a)Explain the meaning of the statement 'electric charge of a body is quantized ' (b) Why can one ignore quantisation of electric charge when dealing with macroscopic , i.e. large scale charges ?

Knowledge Check

  • An electric charge on a body produces

    A
    a magnetic field only
    B
    an electric field only
    C
    both electric and magnetic field
    D
    neither electric nor magnetic field
  • Who established that electric charge is quantised ?

    A
    J.J. Thomson
    B
    William Crookes
    C
    R.A Millikan
    D
    Wilhelm Rontgen
  • Electric charge on a body at rest produces

    A
    electric field
    B
    magnetic field
    C
    deficiency of electrons
    D
    both 'a' and 'b'
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