Electrical Machines
An 8 pole DC generator has 500 armature conductors and useful flux per pole of 0.065 Wb. What will be the emf generated if it is lap connected and runs at 1000 rpm. What must be the speed at which it is driven to produce the same emf if it is wave wound?

 2166.67V, 230 rpm.
 541.67V, 250 rpm.
 2166.67V, 270 rpm.
 541.67V, 200 rpm.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The 3 - Φ induction motors are, by a very considerable margin, the most widely used AC motors as

  they have maximum efficiency and maximum starting torque.
  these are cheaper in cost, simple and rugged in construction.
  they are capable of operation under range of leading and lagging pf.
  they have very good speed regulation.

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Electrical Machines