Ankush
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 Aug 8 comment Rotational speed of a coil in a uniform magnetic field at equilibrium @anonymous I never said that. It will vary. The thing is $\omega$ will reach constant value at equilibrium. Aug 6 comment Rotational speed of a coil in a uniform magnetic field at equilibrium @kleingordon I'm not sure. I studied this long back. You can look into DC motor. They have a concept of achieving a fixed frequency after some time and allowing variable current flow inside. Aug 6 answered Rotational speed of a coil in a uniform magnetic field at equilibrium Aug 6 revised Why do rolling disc (coin) move in circular path? added 36 characters in body Aug 6 comment Why do rolling disc (coin) move in circular path? Aug 6 comment Why do rolling disc (coin) move in circular path? Why do you suppose it should be spinning? We can have a case where coin just traces circular path without spinning around it's own axis. Can we take this over chat? Aug 6 comment Why do rolling disc (coin) move in circular path? That doesn't answer my comment. Is $J$ force you expect? If yes, why outside? The torque is misleading too. It's direction means coin is spinning. Like earth rotating. But you want answer for revolution. Right? Aug 6 awarded Commentator Aug 6 comment Why do rolling disc (coin) move in circular path? What is $J$ here? Is torque in diagram spinning the coin? Aug 6 revised Why do rolling disc (coin) move in circular path? added 103 characters in body Aug 6 comment Why do rolling disc (coin) move in circular path? @experimentX Fall: No. Because $f_{1}$ exerts reverse torque. Aug 6 awarded Teacher Aug 6 comment Why do rolling disc (coin) move in circular path? @experimentX updated the answer. Aug 6 revised Why do rolling disc (coin) move in circular path? added 512 characters in body Aug 5 revised Why do rolling disc (coin) move in circular path? added 176 characters in body Aug 5 answered Why do rolling disc (coin) move in circular path? Nov 15 awarded Supporter Sep 26 accepted Why is it hard to write a computer program to detect patterns which planethunters is asking us to figure out? Sep 23 asked Why is it hard to write a computer program to detect patterns which planethunters is asking us to figure out? Jul 21 comment N particles, will there be any rotation after a period of time or everything will collapse @mmc this simulator is awesome... thanks for sharing