In a hydrogen discharge tube it is observed that through a given cross-section 
electrons are moving from right to left and 
protons are moving from left to right. What is the electric current in the discharge tube and what is its direction
Text Solution
Verified by ExpertsThe correct answer is:
A
Number of electrons 
Number of protons 
Now, the current is given by the relation
Now, due to excess the charge on electrons, the direction of the current will be towards right.
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