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An electron initially at rest is acceler...

An electron initially at rest is accelerated through a potential difference of 1V. The energy acquired by electron is :

A

`10^(-19)J`

B

`1.6xx10^(-19)`erg

C

`1.6xx10^(-19)`J

D

1 J

Text Solution

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The correct Answer is:
C
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Knowledge Check

  • An electron initially at rest is accelerated through a potential difference of one volt. The energy gained by the electron is

    A
    1J
    B
    `1.6 xx 10^(-19)J`
    C
    `10^(-19)J`
    D
    None of these

  • An electron initially at rest, is accelerated through a potential difference of 200 volt, so that it acquires a velocity 8.4 xx 10^(6)m//s . The value of e//m of elctron

    A
    `2.76 xx 10^(12) C//kg`
    B
    ` 1.76 xx 10^(11)C//kg`
    C
    `0.76 xx 10^(12)C//kg`
    D
    None of these

  • A physical was performing experiments to study the velociyt and wavelength of the electron. In one case, the electron was accelerated through a potential differences of 1 KV and in second case it was accelerated through a potential difference of 2KV. The velocity acquired by the electron will be

    A
    Double in the second case than in the first case.
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    Four times in the second case than in the first case.
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