Current Electricity Charging Discharging Of Capacitors Question 341
Question: In hydrogen atom, the electron makes $ 6.6\times 10^{15} $ revolutions per second around the nucleus in an orbit of radius $ 0.5\times {{10}^{-10}}m $ . It is equivalent to a current nearly
Options:
A) 1 A
B) 1 mA
C) $ 1,\mu A $
D) $ 1.6\times {{10}^{-19}}A $
Show Answer
Answer:
Correct Answer: B
Solution:
i = qn $ =1.6\times {{10}^{-19}}\times 6.6\times 10^{15} $
$ =10.56\times {{10}^{-4}}A=1mA $
BETA
