Current Electricity Charging Discharging Of Capacitors Question 393
Question: If an electron revolves in the path of a circle of radius of $ 0.5\times 10^{10}m $ at frequency of $ 5\times 10^{15}cycles/s $ the electric current in the circle is (Charge of an electron $ =1.6\times 10^{19}C $ )
[EAMCET 2000]
Options:
A) 0.4 mA
B) 0.8 mA
C) 1.2 mA
D) 1.6 mA
Show Answer
Answer:
Correct Answer: B
Solution:
$ i=\frac{Q}{T}=Q\nu =1.6\times {{10}^{-19}}\times 5\times 10^{15}=0.8mA $ .
BETA
