In a hydrogen atom, an electron moves in an orbit of radius 5.0×10−11 m with a speed of 2.2×106 ms−1. The equivalent current is :
Answer & explanation
Correct answer: option 3
I= e/T ; T = 2πr/v
r = 5.0×10−11 m ; v = 2.2×106 ms−1 ; e = 1.6 x 10-19 C
I = 1.12×10-11 A