current electricity
Asked by tangocharliee | 4th Nov, 2009, 07:41: PM
Expert Answer:
Total momentum of electrons = (no of electrons)(mass of an electron)(velocity)
= (no of electrons)(mass of an electron)(Length)/time
=NmL/t ..............(1)
I = 70 A = 70 C/s = Ne/t C/s,
N/t = I/e = 70/1.602x10-19; m = 9.11x10-31 kg; L = 1000 m,
Using these in (1),
Total momentum of electrons = 40 x 10-8 kg.m/s
Regards,
Team,
TopperLearning.
Answered by | 5th Nov, 2009, 01:40: PM
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