Physics Help Forum Question about charged circular dish-an old topic

 Electricity and Magnetism Electricity and Magnetism Physics Help Forum

 Mar 19th 2019, 09:58 AM #11 Senior Member     Join Date: Jun 2016 Location: England Posts: 1,085 Why do you claim that if the electron is "stationary" (relative to the ground) but you are moving, you will not experience any magnetic effects due to the electron. The ground has nothing to do with the argument. It is the relative movement of you and the electron that give rise to the magnetism. So you will experience magnetism in both cases. This can be seen in the simple magnet and wire experiment. You get exactly the same effect by moving the magnet as you get by moving the wire. If you move both at the same rate, so they stay the same distance apart, then you will see no effect. topsquark likes this. __________________ ~\o/~
 Mar 19th 2019, 04:50 PM #12 Senior Member   Join Date: Mar 2019 Location: cosmos Posts: 666 Top guess 2019? Thanks for you reply, woody. But intuition tells me that magnetism will not occur in the latter case in my last post. Guys may do an experiment as below: Fix a plastic ball over the ground and brush it with a piece of cloth or leather, which one is appropriate. (charge by friction) Put a compass beside the ball. Put the cloth or leather on a table nearby. Walk to ball and watch if the compass turns. A partner is wellcome too, walk to the ball in the opposite side and watch the compass. Last edited by neila9876; Mar 19th 2019 at 05:05 PM. Reason: accurate
 Mar 19th 2019, 05:02 PM #13 Senior Member     Join Date: Jun 2016 Location: England Posts: 1,085 I think I see what you are saying, You have created a static electric charge on the ball, by moving the compass relative to the ball (or the ball relative to the magnet) you now have a moving charge relative to the compass, a moving charge should create a magnetic field, which should be detected by the compass. __________________ ~\o/~
 Mar 19th 2019, 05:09 PM #14 Senior Member   Join Date: Mar 2019 Location: cosmos Posts: 666 The ball, the compass, the cloth are relatively static. The guys are moving. What will they see in the compass?
 Mar 19th 2019, 05:45 PM #15 Senior Member     Join Date: Jun 2016 Location: England Posts: 1,085 Exactly the same as they would see if the ball and the cloth were not present. topsquark likes this. __________________ ~\o/~
 Mar 22nd 2019, 01:14 AM #16 Senior Member   Join Date: Mar 2019 Location: cosmos Posts: 666 I only want to spark thought about space here, I suggest that this thread close here.

 Tags charged, circular, dishan, question, topic

 Thread Tools Display Modes Linear Mode

 Similar Physics Forum Discussions Thread Thread Starter Forum Replies Last Post CosmicC Periodic and Circular Motion 3 Aug 20th 2017 09:14 AM punintentional Periodic and Circular Motion 2 Apr 2nd 2017 01:48 AM punintentional Periodic and Circular Motion 1 Mar 30th 2017 07:51 AM SMA777 Electricity and Magnetism 0 Jan 12th 2012 06:20 PM xtheunknown0 Kinematics and Dynamics 1 Jan 15th 2011 11:23 PM