VITEEE 2012 Paper

Section: Physics
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Question : 20 of 120
 
Marks: +1, -0
In a hydrogen discharged tube it is observed that through a given cross-section 3.13 x 1015 electrons are moving from right to left and 3.12 x 1015 protons are moving from left to right. What is the electric current in the discharge tube and what is its direction?
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