y 30% +21 As shown in the figure, a very long uniformly charged wire having charge density of +21 is directed in the xy plane and makes an angle of 30° to y axis. An electron moves in a circular path of radius r around this wire. Find a statement for the magnitude of the velocity of the electron. The effect of gravitation will be neglected. (the magnitude of the charge of electron is e and its mass is m ). kel a) 2 2kel b) kel c) 2 3kel d) kea e) 2 m m 2m 2m 3m
y 30% +21 As shown in the figure, a very long uniformly charged wire having charge density of +21 is directed in the xy plane and makes an angle of 30° to y axis. An electron moves in a circular path of radius r around this wire. Find a statement for the magnitude of the velocity of the electron. The effect of gravitation will be neglected. (the magnitude of the charge of electron is e and its mass is m ). kel a) 2 2kel b) kel c) 2 3kel d) kea e) 2 m m 2m 2m 3m
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Transcribed Image Text:y
30
/+21
As shown in the figure, a very long uniformly charged wire having charge density
of +21 is directed in the xy plane and makes an angle of 30° to y axis. An electron
moves in a circular path of radius r around this wire. Find a statement for the
magnitude of the velocity of the electron. The effect of gravitation will be neglected.
(the magnitude of the charge of electron is e and its mass is m).
а) 2.
kel
b)
2ked
kel
c) 2
3kel
d)
e) 2
kel
m
m
2m
2m
3m
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