Question

In a Helium gas discharge tube every second 40 x 1018 He+ (ions) move towards the right through a cross - section of the tube, while n
electrons move to the left in the same time.
If the current in the tube is 8A towards right then n = ?
(1)3 x 10¹⁸
(2) 3 x 10¹⁹
(3) 3 x 10²⁰
(4) 3 x 10²¹​

Answer 1

Answer:

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