The simple rotating loop between pole faces connected to a battery and resistor through a switch, the specifications of this machine are radius = 0.5m, length 1m, resistance = 0.3 ohms and magnitude strength = 0.25T is supplied with 120V. What is the steady state angular velocity at no-load?
(a) 480 rad/s
(b) 960 rad/s
(c) 320 rad/s
(d) 490 rad/s
The question was posed to me in an internship interview.
The query is from Torque in DC Machines in section Electromechanical Energy Conversions of Electrical Machines