ÔN TẬP HK2-B17 by HONG NHUNG https://padlet.com/HongNhung/f6d0agnpdx57 Chọn một trong các bài tập sau và giải. (2, 4 , 7, 9) en-us 2016-04-08 05:37:57 UTC 2026-01-06 21:13:45 UTC hello@padlet.com https://padlet-assets.storage.googleapis.com/portrait/monkey.jpg Ngọc Ân câu 7 https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749776  Ta có :n1sini=n2sinr
Mà n1=1, <=> n2=sini/sinr =sin30/sin(90-60)=√3]]> 2016-04-08 07:25:58 UTC https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749776 Phương uyên https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749790  Câu 2:
 Ec = Nx denta phi/ denta t = N. (Denta B x S z cos(a) )/ denta t = 4x10 mũ trừ 3 (V)]]> 2016-04-08 07:26:05 UTC https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749790 Thanh trúc https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749813 bài 2:  n1 .sin i = n2 . sin r
Mà n1 = 1 <=> n2 = sini/sinr = sin30/ sin (90-60)= √3

]]> 2016-04-08 07:26:15 UTC https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749813 Quang vinh https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749823 2016-04-08 07:26:18 UTC https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749823 Ánh ly bài 2 https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749828 Ec= N nhân đenta phi chia đenta tê
=N nhân đentaB nhân S nhân cos anpha chia cho đenta tê
= 4*10mũ -3]]> 2016-04-08 07:26:19 UTC https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749828 minh tai https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749833 2016-04-08 07:26:21 UTC https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749833 LAN anh https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749866 2016-04-08 07:26:32 UTC https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749866 Vinh https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749869 2016-04-08 07:26:32 UTC https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749869 Vinh https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749870 Bài 4
A) c=4π.10^-7.n2.s/n

]]> 2016-04-08 07:26:33 UTC https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749870 Thảo Nhi bài  https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749876 2016-04-08 07:26:35 UTC https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749876 LAN anh https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749894 Ec =]]> 2016-04-08 07:26:42 UTC https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749894 Ngọc Trinh bài 2 https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749901 2016-04-08 07:26:47 UTC https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749901 https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749917 Quỳnh 
 L=4*3.14*10^-7*(1000)^2/0.2* 0.01
=6.28*10^-2 ( ]]> 2016-04-08 07:26:55 UTC https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749917 Vĩnh hưng https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749924 Bài 2 
Denta phi = BScos0'=BS= 4.10^-7Wb
| ec |= N. |denta phi / denta t|= 100.(4.10^-7/0.01)=4.10^-3 V




]]> 2016-04-08 07:26:58 UTC https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749924 Minh Quyd https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749939 Bai7
nt.sin60=nk.sin30
=>nk=sin60/sin30=căn3]]> 2016-04-08 07:27:04 UTC https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749939 Thanh Hùng câu 4 https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749955

]]> 2016-04-08 07:27:11 UTC https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749955 LAN An https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749995 Qxđ 

]]> 2016-04-08 07:27:30 UTC https://padlet.com/HongNhung/f6d0agnpdx57/wish/104749995 Phương Khanh&nbsp; https://padlet.com/HongNhung/f6d0agnpdx57/wish/104750045 2016-04-08 07:27:52 UTC https://padlet.com/HongNhung/f6d0agnpdx57/wish/104750045 Quang Minhh https://padlet.com/HongNhung/f6d0agnpdx57/wish/104750062 Em bịgl gì á sao nó  ]]> 2016-04-08 07:28:01 UTC https://padlet.com/HongNhung/f6d0agnpdx57/wish/104750062 quỳnh  https://padlet.com/HongNhung/f6d0agnpdx57/wish/104750159 2016-04-08 07:28:56 UTC https://padlet.com/HongNhung/f6d0agnpdx57/wish/104750159 Quang minh&nbsp; https://padlet.com/HongNhung/f6d0agnpdx57/wish/104750180 2016-04-08 07:29:10 UTC https://padlet.com/HongNhung/f6d0agnpdx57/wish/104750180 Quang vinh câu  https://padlet.com/HongNhung/f6d0agnpdx57/wish/104750318 2016-04-08 07:30:08 UTC https://padlet.com/HongNhung/f6d0agnpdx57/wish/104750318