2013南京航空航天大学考研真题之电路(专业学位).pdf
S “ S “ p V 71 S i(t)bma89 5 sl5s 1m 3.1 U b 1 1AI = pSU 2 1 PSU ? 120W q5SU | $ 2m 3. 2 U XV 20V O U IM p ()Sut! M 0b mm50Su+1002A0.05H1A10F*Su+ 10N 0.05H 0.1H M=0.01H 2.5R10V+2(0)t =S()it2H1HIU+SU+V10101010mHj1010 20V+110I+SU+10 10 10 4AI1IS “ S “ : :3m 3. 3 U M X 6R = 1j4 Z = +110 Z = L 380Vb p 1AI 2 M49 q Pb 4m 3. 4 Uc XM =g X116 2 cos100 Vut= b . T g E F22.5 j2 Z = + p 1i 3 g 7XM - 1A H9 M C I Tb mm5m 3. 5 U 15 ( ) VSut= b pY ()CutUbm ABCZZZAI1ZRRR *0.08H 1u+2u+2 1 1i2i2:1 32su+i*0.3H 0.5H0.1H1FCu+