If an electron is revolving in a circle of radius with frequency of rotation 6.25 x 1018 Hz in clockwise direction then current on the
circumference of the circle is:
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If an electron is revolving in a circle of radius with frequency of rotation 6.25 x 1018 Hz in clockwise direction then current on the
circumference of the circle is:
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Answer:
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Explanation:
Given: an electron revolving in the path of a circle of radius of 0.5×10
−10
m at a frequency of 5×10
15
cycles/sec
To find the electric current in the circle
Solution:
The formulas used
current=
time
charge
and Time period=
frequency
1
and distance=2πr
According to the question, r=0.5×10
−10
m, frequency = 5×10
15
cycles/sec
Therefore, current=2πr× frequency
⟹current=2×3.14×0.5×10
−10
×5×10
15
⟹current=15.7×10
5
A
is the required electric current in the circle