电路及电路图专题训练.pptVIP

/ 电子发烧友网 电路与电路图专题训练 * * Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. 1、图13B-1所示的电路中，正确的是 ( ) C Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. 2、分析图13B-4所示的实物连接电路，下列说法中正确的是 （ ） A、L1、L2是串联 B、L1、L3是串联 C、L1、L2 、 L3是串联 D、L1、L2 、 L3是并联 D Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. 3、如图13B-10所示的电路中，若要使两灯串联，应闭合开关 ；若要使两灯并联，就要闭合开关________。 S3 S1、S2 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. 4、关于电源短路及其危害，下列说法中正确的是 ( ) A．短路就是连接电路用的导线很短 B．短路没有危害，并且节省导线 C．短路就是电路中没有开关 D．短路时，电源会发热而烧坏 D Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. 5、如图所示，下列电路中，开关同时控制电灯和电铃的是 （ ） C Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. 6、如图A、B、C、D是根据左边实物 连接的电路图，其中正确的是 ( ) A Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. 7、甲乙两个办公室为了互相传呼方便，在两个办公室里各装了一个电铃，要使两办公室的任何一方按电键都只能使对方的电铃发声，正确的电路图应是是图中11中的： [ ]　 　 C Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. 8、如图(7)所示电路，以下说法正确的是 ( ?)　A．只接通S1灯亮，电铃响　B．只接通S2灯亮，电铃响　C．只断开S3灯亮，电铃响　D．只断开S1灯亮，电铃响 B Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. 9、如图所示，若要A灯亮，B灯不亮，应将开关 闭合，若要B灯亮A灯不亮，应将开关 闭合，若S2、S3闭合，S1断开，则A灯 ，B.灯 ． S1、S3 S1、S2 灭 灭 Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile . Copyright 2004-2011 Aspose Pty Ltd. 10、如图11—10所示，要使灯L1和L2串联，应该闭合开关 ，断