Current Electricity Charging Discharging Of Capacitors Question 395
Question: An electron (charge = 1.6 × 10?19 coulomb) is moving in a circle of radius 5.1 × 10?11m at a frequency of 6.8 × 1015 revolutions/sec. The equivalent current is approximately
[MP PET 2000]
Options:
A) $ 5.1\times {{10}^{-3}} $ amp
B) $ 6.8\times {{10}^{-3}} $ amp
C) $ 1.1\times {{10}^{-3}} $ amp
D) $ 2.2\times {{10}^{-3}} $ amp
Show Answer
Answer:
Correct Answer: C
Solution:
$ i=e\nu =1.6\times {{10}^{-19}}\times 6.8\times 10^{15}=1.1\times {{10}^{-3}}amp. $
BETA
