If an electron revolves in the circular path of radius `0.5A^(@)` at a frequency of `5xx10^(15)` cycles/sec. The equivalent electric current is

Question

If an electron revolves in the circular path of radius `0.5A^(@)` at a frequency of `5xx10^(15)` cycles/sec. The equivalent electric current is

If an electron revolves in the circular path of radius `0.5A^(@)` at a frequency of `5xx10^(15)` cycles/sec. The equivalent electric current is
A. 4.0mA (clockwise)
B. 4.0mA (anti-clockwise)
C. 8.0mA(clockwise)
D. 8.0mA(anti-clockwise)

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - 3
Charges crossing a point per second is current. i.e., `exxv ` (this frequency of rotation is for a given radius).
`therefore I=1.6xx10^(-19)xx5xx10^(+16)=8xx10^(-3)A=8mA`.
The direction of the current is opposite to the motion of the electron i.e., clock wise.

4 views Answered 2023-02-05 15:29