试题与答案

如图甲、乙电路中,电阻R和自感线圈L的电阻都很小,接通S,使电路达到稳定,灯泡A

题型:不定项选择

题目:

如图甲、乙电路中,电阻R和自感线圈L的电阻都很小,接通S,使电路达到稳定,灯泡A发光,则

[ ]

A.在电路甲中,断开S,A将渐渐变暗

B.在电路甲中,断开S,A将先变得更亮,然后渐渐变暗

C.在电路乙中,断开S,A将渐渐变暗

D.在电路乙中,断开S,A将先变得更亮,然后渐渐变暗

答案:

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