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1 5
.
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B
1 120 100
2
3
10 2 20
1
________
________ ________ ________
2 0.99 c ( 9.11 10 -31kg
__________J _____________
3 10A 0.5m B
____________ 1cm T
____________
4
_________
5 r mt s
t=0 t=2s ______m
6 0.1m
=__________ 1 =__________
7 R
____
8
_____________
9 t= _____________________
10 500 50cm 600 0.3A
, B ___________ H
___________
5 3 15
1
2
3
4
5
10 2 20
1
A.
B.
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