试题详情

交流电路阻抗Z=3+j4 Ω,电压U=100V,则电路无功功率Q=(____)。

A1200var$;$1600VA$;$1600var$;$2000var

B1200var$;$1600VA$;$1600var$;$2000var

C1200var$;$1600VA$;$1600var$;$2000var

D1200var$;$1600VA$;$1600var$;$2000var