In a hydrogen discharge tube it is observed that through a given cross-section 3-13- 1015electrons are moving from right to left and 3-12- 1015protons are moving from left to right- What is the electric current in the discharge tube and what is its direction

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Byju's Answer

Standard XII

Physics

The Flow of Electrons as Electric Current

In a hydrogen...

Question

In a hydrogen discharge tube it is observed that through a given cross-section $3.13 \times 10^{15}$ electrons are moving from right to left and $3.12 \times 10^{15}$ protons are moving from left to right. What is the electric current in the discharge tube and what is its direction

1mA towards right

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1mA towards left

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2mA towards left

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2mA towards right

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Solution

The correct option is A 1mA towards right
$l = n_{e} q_{e} + n_{p} q_{p} = 1 m A$ towards right

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In a hydrogen discharge tube it is observed that through a given cross-section 3.13× 1015electrons are moving from right to left and 3.12× 1015protons are moving from left to right. What is the electric current in the discharge tube and what is its direction

The correct option is A 1mA towards right l=neqe+npqp=1mA towards right

In a hydrogen discharge tube it is observed that through a given cross-section $3.13 \times 10^{15}$ electrons are moving from right to left and $3.12 \times 10^{15}$ protons are moving from left to right. What is the electric current in the discharge tube and what is its direction

The correct option is A 1mA towards right
$l = n_{e} q_{e} + n_{p} q_{p} = 1 m A$ towards right