唐介电工学少学时解答.ppt

练习题解答 求图示电路中开关 S 闭合和断开两种情况下 a、 b、 c 三点的电位。 RS 3 V 6 V abc [ 解] S 闭合时, S 断开时 V V V a b c 6V, 3V, 0V. ? ??? V V V a b c 6V, (6 3)V 9V. ? ? ???下一题返回练习题集 Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copyright 2004-2011 Aspose Pty Ltd. 解: S闭合时 VVV b3 a 3 3 3 c 3 3 0 V 4 1 0 ( 1 2 ) V 8 V 2 1 0 4 1 0 4 1 0 ( 6 ) V 4 V 2 1 0 4 1 0 ??? ??? ??? ??? ????? ?? ??? ? 求图示电路中开关 S 闭合和断开两种情况下a、b、 c 三点的电位。 S 2 k ?abc +12 V 4 k ?-6 V 4 k ?2 k ?下一题上一题返回练习题集 [ 解] S 断开时, VVV 3 a 33 b 33 c 3 2 1 0 1 2 ( 1 2 6 ) V 9 V ( 2 4 4 2 ) 1 0 ( 2 4 ) 1 0 1 2 ( 1 2 6 ) V 3 V ( 2 4 4 2 ) 1 0 2 1 0 6 ( 1 2 6 ) V 3 V ( 2 4 4 2 ) 1 0 ? ??? ? ???? ?? ???? ?? ?? ?? ? ???? ?? ???? ?? ??? ?? ????? ?? ???? ? Evaluation only. Evaluation only. Created with Client Profile . Created with Client Profile . Copyright 2004-2011 Aspose Pty Ltd. Copy