单项选择题
L1=L2=10H,C=1000μF,M从0变至6H时,谐振角频率的变化范围应为()。
A. B.0~∞rad/s C.10~12.5rad/s D.不能确定
A.6.67(1-e-t/τ)V B.10e-t/τV C.10(1-e-t/τ)V D.(6.67+3.33e-t/τ)V
A.2S B.-14S C.3S D.-3S