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An electron of charge e and mas m is moving in a circular path of radius r with a unifrom angular speed omega . Then which of the following statementa are correct? |
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Answer» The equivalent current flowing in the CIRCULAR path is proprotional to `r^(2)`. `therefore` The current flowing in the loop. `I = e/T = e/(2pi//omega)=(eomega)/(2pi)` Hence, STATEMENT (a) is incorrect. Area of the loop, `A = PIR^(2)` Magnetic moment of the loop, `M = IA= (eomega)/(2pi)PI r^(2) = (er^(2)omega)/2` Hence, statement (b) is correct. As `M = e/(2m)L` where L is the angular momentum of the electron. Hence. statement (c) is incorrect. Angular momentum `=2m(dA)/dt` where `(dA)/dt` is the area velocity. Hence, statement (d) is correct. |
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