A. Unwanted turn ON
B. Breakdown of J2 junction
C. Both A and B
D. Anyone of these
Related Mcqs:
- What happen due to high di / dt____________?
A. Breakdown of junction
B. Local hot spot
C. Insulation failure
D. None of these - What is used to protect a thyristor from high di / dt conditions__________?
A. Fuse.
B. Snubber circuit
C. Inductor
D. Voltage clamping device - Which of the following is used in SCR to protect from high dV / dt__________________?
A. Snubber circuit
B. Fuse
C. Equalizing circuit
D. Circuit breaker - Which one is most suitable power device for high frequency (>100 KHz) switching application?
A. BJT
B. Power MOSFET
C. Schottky diode
D. Microwave transistor - To meet high current demand we use SCRs in______________?
A. series connection.
B. parallel connection.
C. anti parallel connection.
D. both B and C. - A power semiconductor may undergo damage due to____________?
A. High di/dt
B. High dv/dt
C. Low di/dt
D. Low dv/dt - Thyristor can be protected from over voltages by using____________?
A. voltage clamping device.
B. fuse.
C. heat sink.
D. snubber circuit. - IGBT combines the advantages of_____________?
A. BJTs and SITs
B. BJTs and MOSFETs
C. SITs and MOSFETs
D. None of these - By which one of the following we can measure the reliability of a string_____________?
A. String efficient
B. Reliability factor
C. Factor of safety
D. Derating factor - 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
