A conducting bar of mass m = 1kg and length I = 1m is in contact...

 

Transcribed Image Text:

A conducting bar of mass m = 1kg and length I = 1m is in contact with a thin conducting circular ring as shown in the figure. The bar rotates about the pivot point o which is also the center of the ring. The ring and the bar are connected by a resistor R = 10. A uniform magnetic field B to the rotating plane of the bar and the ring. The bar is released to rotate at t = O after reaching initial angular speed w, = of the rod att = 2s. (Assume that there is a good electrical contact between bar and the ring and ignore friction forces). 17 is applied perpendicular %3D 100rad/s. Find the angular speed w %3D a) 47,23rad/s b) 22,31rad/s c) 10,54rad/s d) 4,98rad/s e) 2,35rad/s R. m B A conducting bar of mass m = 1kg and length I = 1m is in contact with a thin conducting circular ring as shown in the figure. The bar rotates about the pivot point o which is also the center of the ring. The ring and the bar are connected by a resistor R = 10. A uniform magnetic field B to the rotating plane of the bar and the ring. The bar is released to rotate at t = O after reaching initial angular speed w, = of the rod att = 2s. (Assume that there is a good electrical contact between bar and the ring and ignore friction forces). 17 is applied perpendicular %3D 100rad/s. Find the angular speed w %3D a) 47,23rad/s b) 22,31rad/s c) 10,54rad/s d) 4,98rad/s e) 2,35rad/s R. m B