Current Electricity Charging Discharging Of Capacitors Question 410
Question: A current of 1 mA is flowing through a copper wire. How many electrons will pass a given point in one second $
[ e=1.6\times 10^{19}Coulomb ] $ [RPMT 2000; MP PMT 2002]
Options:
A) 6.25 × $ 10^{19} $
B) 6.25 × $ 10^{15} $
C) 6.25 × $ 10^{31} $
D) 6.25 × $ 10^{8} $
Show Answer
Answer:
Correct Answer: B
Solution:
$ n=\frac{1\times {{10}^{-3}}}{1.6\times {{10}^{-19}}}=6.25\times 10^{15} $ .
BETA
