如图7-38所示电路原已稳定，t=0时断开开关S,则uC1（0+）为（）V。 A.78 B.117 C.135 D.39

作者: tihaiku 人气: - 评论: 0

问题如图7-38所示电路原已稳定，t=0时断开开关S,则uC1（0+）为（）V。

选项 A.78 B.117 C.135 D.39

答案 A

解析正确答案是A。提示：S闭合时，电路稳定，电容相当于开路。

分享到：

猜你喜欢

发表评论

更多 网友评论 （0 条评论）

暂无评论

错误啦！

消息: [程序异常] : MISCONF Redis is configured to save RDB snapshots, but it's currently unable to persist to disk. Commands that may modify the data set are disabled, because this instance is configured to report errors during writes if RDB snapshotting fails (stop-writes-on-bgsave-error option). Please check the Redis logs for details about the RDB error.
文件: /twcms/kongphp/cache/cache_redis.class.php
位置: 第 85 行

<?php echo 'KongPHP, Road to Jane.'; ?>