你可能感兴趣的试题
i=5sin(100πt-60°) i=7.07sin(100nt+30°) i=10sin(200πt-60°) i=7.07sin(100πt-30°)
频率f=100Hz,初相角φ=-60°,则该电流的瞬时表达式为( )。i=10sin(200πt-60°)(A) i=7.07sin(100πt+30°)(A) i=5sin(100πt-60°)(A) i=7.07sin(100πt-30°)(A)
i=Imsin(100t-50°)A i=Lmsin(100t+50°)A i=Imsin(100t+10°)A i=Imsin(100t-10°)A
u=100sin(50t+30) u=141.4sin(50t+30) u=200sin(100t+30) u=141.4sin(100t+30)
i=10sin(200πt-60°)(A) i=7.07sin(100πt+30°)(A) i=5sin(100πt-60°)(A) i=7.07sin(100πt-30°)(A)
100sin(50t+30°) 141.4sin(50πt) 200sin(100πt+30°) 200sin(50πt+30°)
100sin(50t+30°) 141.4sin(50πt) 200sin(100πt+30°) 200sin(50πt+30°)
i=20sin(100πt+30°) i=10sin(50πt+30°) i=14.14sin(50πt+30°) i=14.14sin(100πt+30°)