如图,一无限长直导线在某处弯成半径为R的圆。当通以电流I时,圆心O处的磁感应强度的大小为:[img=200x134]18037bdf43f2ddd.png[/img]
A: [img=33x44]18037bdf4d30fad.png[/img]
B: [img=26x44]18037bdf55ffd07.png[/img]
C: [img=77x44]18037bdf5e5cbdf.png[/img]
D: [img=83x44]18037bdf6882128.png[/img]
A: [img=33x44]18037bdf4d30fad.png[/img]
B: [img=26x44]18037bdf55ffd07.png[/img]
C: [img=77x44]18037bdf5e5cbdf.png[/img]
D: [img=83x44]18037bdf6882128.png[/img]
举一反三
- 如图,一无限长直导线在某处弯成半径为R的圆。当通以电流I时,圆心O处的磁感应强度的大小为:[img=200x134]1803968fd146aef.png[/img] A: [img=33x44]1803968fd997680.png[/img] B: [img=26x44]1803968fe21e33f.png[/img] C: [img=77x44]1803968feace686.png[/img] D: [img=83x44]1803968ff39ea97.png[/img]
- 如图,一无限长直导线在某处弯成半径为R的圆。当通以电流I时,圆心O处的磁感应强度的大小为:[img=200x134]180361a1a4ffe5d.png[/img] A: [img=33x44]180361a1ac986f4.png[/img] B: [img=26x44]180361a1b7cf5b2.png[/img] C: [img=77x44]180361a1c0c28d3.png[/img] D: [img=83x44]180361a1cb490b7.png[/img]
- 如图,一无限长直导线在某处弯成半径为R的圆。当通以电流I时,圆心O处的磁感应强度的大小为:[img=200x134]1803292605ec4ea.png[/img] A: [img=33x44]180329260d7109f.png[/img] B: [img=26x44]1803292614cafa5.png[/img] C: [img=77x44]180329261cd7af8.png[/img] D: [img=83x44]18032926242f118.png[/img]
- 如图,一无限长直导线在某处弯成半径为R的圆。当通以电流I时,圆心O处的磁感应强度的大小为:[img=200x134]180329229b624cb.png[/img] A: [img=33x44]18032922a3f5213.png[/img] B: [img=26x44]18032922abeffaa.png[/img] C: [img=77x44]18032922b49199d.png[/img] D: [img=83x44]18032922bd0799d.png[/img]
- 如图,一无限长直导线在某处弯成半径为R的圆。当通以电流I时,圆心O处的磁感应强度的大小为:[img=200x134]18035ec04e97648.png[/img] A: [img=33x44]18035ec05761bfd.png[/img] B: [img=26x44]18035ec060c245b.png[/img] C: [img=77x44]18035ec0698ee26.png[/img] D: [img=83x44]18035ec071953aa.png[/img]