Current Electricity Charging Discharging Of Capacitors Question 386

Question: 1.6 mA current is flowing in conducting wire then the number of electrons flowing per second is

[RPMT 1999]

Options:

A) $ \text{1}{{0}^{\text{11}}} $

B) $ \text{1}{{0}^{\text{16}}} $

C) $ \text{1}{{0}^{\text{19}}} $

D) $ \text{1}{{0}^{\text{15}}} $

Show Answer

Answer:

Correct Answer: B

Solution:

$ i=\frac{ne}{t} $

Therefore $ n=\frac{it}{e}=\frac{1.6\times {{10}^{-3}}\times 1}{1.6\times {{10}^{-19}}}=10^{16} $ .