(1)0.04 Wb/s (2)4 V (3)0.4 A
(1)回路中磁通量的变化率
=S
=0.2×0.2 Wb/s="0.04" Wb/s.
(2)回路中的感应电动势
E=n
=100×0.04 V="4" V.
(3)等效电路如图所示,其中r=R 2,根据闭合电路欧姆定律
I=
A="0.4" A.
(1)0.04 Wb/s (2)4 V (3)0.4 A
(1)回路中磁通量的变化率
=S
=0.2×0.2 Wb/s="0.04" Wb/s.
(2)回路中的感应电动势
E=n
=100×0.04 V="4" V.
(3)等效电路如图所示,其中r=R 2,根据闭合电路欧姆定律
I=
A="0.4" A.