例已知R1=102L=5H,L2=2H,M=1H求n()和n2() M R 12办s 解 10t 0≤t≤ls l2()=m「10 0≤t≤ls 101<t≤2s i=20-10t1≤t≤2s dt 0 2<t 0 ≤t I don't know 100t+50V0≤t≤ls u()=R11+Lm={-100t+1501≤t≤2s 0 2<t 返回「上页「下页例 i1 * * L1 L2 + _ u2 M + R1 R2 _ u 0 1 2 10 i1 /A t/s 10 , 5H, 2H, 1H, ( ) ( ) 1 1 2 2 已知 R =  L = L = M = 求u t 和u t      −     = = t V t s V t s t i u t M 0 2 10 1 2 10 0 1 d d ( ) 1 2 解      − +   +   = + = t t V t s t V t s t i u t R i L 0 2 100 150 1 2 100 50 0 1 d d ( ) 1 1 1       −     = t t t s t t s i 2 0 20 10 1 2 10 0 1 1 返 回 上 页 下 页 I don’t know