已知正弦电压u1=80sinωtV,u2=100sin(ωt+36.9°)V,则u2 - u1 为
A、60sin(ωt+90°)V
B、60sin(ωt-90°)V
C、60sin(ωt+36.9°)V
D、20sin(ωt+36.9°)V
发布时间:2025-07-15 19:50:48
A、60sin(ωt+90°)V
B、60sin(ωt-90°)V
C、60sin(ωt+36.9°)V
D、20sin(ωt+36.9°)V