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The electric current in a discharge tube...

The electric current in a discharge tube containing a gas is due to

A

electron only

B

positive ions only

C

negative ion and positive ions both

D

electrons and positive ions both

Text Solution

Verified by Experts

The correct Answer is:
D
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Knowledge Check

  • In a hydrogen tube it is observed that through a given cross-section 3.13xx10^(15) electrons per sec, moving from right to left and 3.12xx10^(15) protons per sec are moving from left to right. The electric current in the discharge tube ad its direction is

    A
    1 mA towards left
    B
    1 mA towards right
    C
    1.5 mA towards right
    D
    2 mA towards right

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    electron only
    B
    positive ions only
    C
    negative and positive ions both
    D
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  • The current conduction in a discharged tube is due to

    A
    Electrons only
    B
    `+ve` ions and electrons
    C
    `-ve` ions and electrons
    D
    `+ve` ions, `-ve` ions and electrons

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