Question

Q1: True or False. Highlight answers for full credit. Part Question T/F A The tesla (T) and the gauss (G) are not units for magnetic flux. B The unit for measuring magnetomotive force (MMF) is the weber (Whb) C Ohm's law for a magnetic circuit gives the relationship between flux density, magnetomotive D A solenoid is a form of electrometric switch that opens and closes mechanical contacts force, and reluctance. E A hysteresis curve is a plot of flux density (B) as a function of field intensity (H) F To produce an induced voltage in a coil, the magnetic field surrounding it can be changed. G The speed of a generator can be controlled with a rheostat in the field windings. H A self-excited DC generator will normally have enough residual magnetism in the field magnets to start the generator producing voltage at the output when it is first turned on. The power developed by a motor us proportional to its torque. J In a brushless motor, the magnetic field is supplied by permanent magnets. K I look forward to ECET 201 each week and enjoy studying more than 4 hours per week for this class