九年级物理通电螺线管的磁场

曲方向跟螺线管中电流方向一致Р大拇指所指那端为通电螺线管N极.РIРIРNРSР右手螺旋定则Р通电螺线管磁场方向与螺线管中电流方向关系的判断Р(安培定则)РEvaluation only.?Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.?Copyright 2004-2011 Aspose Pty Ltd.РEvaluation only.?Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.?Copyright 2004-2011 Aspose Pty Ltd.РIРIРNРSР握明线时,?手背对着自己Р握暗线时,?手掌心对着自己РEvaluation only.?Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.?Copyright 2004-2011 Aspose Pty Ltd.Р应用右手螺旋定则的方法和顺序:Р1.查清螺线管的绕线方向。Р2.标出电流在螺线管中的方向。Р3.用右手螺旋定则确定螺线管的磁极方向。РEvaluation only.?Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.?Copyright 2004-2011 Aspose Pty Ltd.РNРSРSРNРNРNРSРSР甲Р乙Р丙Р丁Р通电螺线管的四种情况:РEvaluation only.?Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.?Copyright 2004-2011 Aspose Pty Ltd.