如图,RLC串联电路中,已知端电压。当电容C=8μF时,电路吸收的平均功率最大值达到100W,则此时电路的R和L值分别是()。
10Ω,0.02H
1Ω,0.02H
10Ω,0.01H
1Ω,0.01H
(1)电路吸收的平均功率为:,当发生串联谐振时I=Imax,此时PR=。串联谐振要求,,解得:。
(2) ,发生串联谐振时,已知=100W,则:。