While running at 780 rpm, the input current for a 48 V serie…

While running at 780 rpm, the input current for a 48 V series DC motor is 15A.  The armature and field resistances are 0.25 Ω and 0.125 Ω, respectively.  Determine: (a) the motor constant; (b) the motor output power; and (c) the output torque of the motor.

You have studied all sorts of motors and generators in this…

You have studied all sorts of motors and generators in this course. Let us capture some neat points. List applications of at least two types of motors and two types of generators from your daily life or work  environments.  type ‘done’ in the box if you end up tying the answers in the text box that appears.   

Fill in the Blank with the best word(s), phrase or expressio…

Fill in the Blank with the best word(s), phrase or expression that completes each statement below. The variables magnetizing reactance Xm and core loss resistance Rc are used to describe both real transformers and ______________________________________________________________.(tip: another electrical machine category, choices being induction machines, synchronous machines, dc machines)

Based on the following scenario, calculate the volume and op…

Based on the following scenario, calculate the volume and open interest over the trading day.  Assume that during the first transaction of the day, trader A goes long 7 contracts while trader B goes short those 7 contracts.  During the next transaction, trader C goes long 8 contracts while trader D takes the opposite position of trader C.   During the next transaction, trader B evens-up all 7 of their contracts, while trader E takes the opposite position to that of trader B.  If these are all the trades for the day, what is the volume and open interest at the end of the day?  Show your work.