KCET2022PhysicsCurrent Electricity
In an atom electrons revolve around the nucleus along a path of radius 0.72 Å making 9.4 10¹⁸ revolutions per second. The equivalent currents is [given, e=1.6 10⁻¹⁹ C ]
Options
- A1.5 ~A
- B1.4 ~A
- C1.8 ~A
- D1.2 ~A
Correct answer
A. 1.5 ~A
Step-by-step solution
Given, radius of circular path, aligned r & =0.72 Å=0.72 10⁻¹⁰ ~m =7.2 10⁻¹¹ ~m ( n t ) & =9.4 10¹⁸ rev / s . e & =1.6 10⁻¹⁹ C aligned Equivalent current, I= n e t = ( n t ) e =9.4 10¹⁸ 1.6 10⁻¹⁹=1.504=1.5 ~A