Electrical Engineering Mcqs

IGBT stands for___________?
  • (A)  Insulated gate bipolar transistor
  • (B)  Insulated gate bidirectional transistor
  • (C)  Inductive gate bipolar transistor
  • (D)  Inductive gate bidirectional transistor
Electrical power output in a d.c. generator is equal to____________?
  • (A)  Electrical power developed in armature – copper losses
  • (B)  Mechanical power input – iron and friction losses
  • (C)  Electrical power developed in armature – iron and copper losses
  • (D)  Mechanical power input – iron and friction losses – copper losses
An ideal switch is___________?
  • (A)  Lossless
  • (B)  Carry current in any direction when it is on
  • (C)  Does not carry any current in any direction when it is off
  • (D)  All of these