A.Hysteric control
B.Current mode control
C.All of these
D.Voltage mode control
Explanation: The correct answer is All of these.
Submitted by: Academy of Pakistan
Power Electronics in Electrical Engineering MCQs: 217 practice questions with answer choices and available explanations. Page 10 of 15.
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View All Electrical Engineering MCQs MCQsBasic Electrical MCQs121Power Electronics217Transformers132Transmission and Distribution90D.C. Motors130D.C. Generators120Polyphase Induction Motors99Single Phase Induction Motors110Synchronous Motors122Network Theorems47Economics of Power Generation98A.C. Fundamentals, Circuits and Circuit Theory109Cables57Electrolysis and Storage of Batteries119Electrostatics180Magnetic Circuit28Rectifiers and Converters58Magnetism and Electromagnetism85Electromagnetic Induction85Switchgear and Protection102OP-AMP Circuits24Heating and Welding50Earthing or Grounding11Parallel Circuits25Oscillators28Amplifiers with Negative Feedback18Transistors42Semiconductor Diode44Analog Electronics46Hybrid Parameters12Modulation and Demodulation40Control Systems100Digital Electronics36Electric Traction74Electrical Engineering Materials100Electrical Machine Design103Electronic Instruments30Field Effect Transistors - FET47Industrial Drives70Integrated Circuits15Measurement and Instrumentation109Multi-Stage Transistor Amplifiers40Power Generation121Regulated D.C. Power Supply39SCR (Silicon Controlled Rectifiers)25Semiconductor Theory35Single Stage Transistor Amplifiers38Solid-State Switching Circuits29Transistor Audio Power Amplifiers39Transistor Biasing40Transistor Tuned Amplifiers40Series-Parallel Circuits29Passive Filters20Operational Amplifier30
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Power Electronics
Showing page 10 of 15 · 217 total solved questions available.
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A.It will rotate at dangerously high speed
B.It will rotate at less speed as that with its field winding closed
C.None of these
D.It will rotate at the same speed as that with its field winding closed
Explanation: The correct answer is It will rotate at dangerously high speed.
Submitted by: Academy of Pakistan
A.Drop across the drift region
B.Drop across MOSFET portion
C.Drop across the collector junction
D.All of these
Explanation: The correct answer is All of these.
Submitted by: Academy of Pakistan
A.both B and C
B.anode current rises 10 % to 90 % of its final value
C.gate current rises from 90 % to 100 % of it final value
D.anode voltage drops from 90 % to 10 % of its initial value
Explanation: The correct answer is both B and C.
Submitted by: Academy of Pakistan
A.SIT is a high power, high frequency device
B.SIT is a low power, high frequency device
C.SIT is a high power, high voltage device
D.SIT is a high power, low frequency device
Explanation: The correct answer is SIT is a high power, high frequency device.
Submitted by: Academy of Pakistan
A.V 0 = V s / ( 1 – D )
B.V 0 = V s
C.V 0 = V s / D
D.V 0 = D V s
Explanation: The correct answer is V 0 = D V s.
Submitted by: Academy of Pakistan
A.charge carriers of J3 junction is removed
B.charge carriers of J2 junction is swept out
C.charge carriers of J2 junction recombined
D.charge carrier of J1 junction removed
Explanation: The correct answer is charge carriers of J2 junction recombined.
Submitted by: Academy of Pakistan
A.Power MOSFET
B.Schottky diode
C.Microwave transistor
D.BJT
Explanation: The correct answer is Power MOSFET.
Submitted by: Academy of Pakistan
A.Average value of current and voltage to its root mean square value
B.Peak value of current and voltage to its root mean square value
C.Root mean square value of voltage and current to its average value
D.Root mean square value of voltage and current to its peak value
Explanation: The correct answer is Root mean square value of voltage and current to its average value.
Submitted by: Academy of Pakistan
A.Capacitor and load
B.Inductor and capacitor
C.Diode and capacitor
D.Capacitor and SCR
Explanation: The correct answer is Diode and capacitor.
Submitted by: Academy of Pakistan
A.Does not contains third harmonic
B.Does not contains second harmonic
C.Does not contains fifth harmonic
D.Does not contains seventh harmonic
Explanation: The correct answer is Does not contains second harmonic.
Submitted by: Academy of Pakistan
A.Uninterruptible power supplies
B.All of these
C.Induction heating system
D.Constant voltage and frequency power supplies
Explanation: The correct answer is All of these.
Submitted by: Academy of Pakistan
A.Small current spikes and can be reduced by using an inductive filter
B.Large current spikes and can be reduced by using an inductive filter
C.Small current spikes and can be increased by using an inductive filter
D.Large current spikes and can be increased by using an inductive filter
Explanation: The correct answer is Large current spikes and can be reduced by using an inductive filter.
Submitted by: Academy of Pakistan
A.90
B.80
C.70
D.60
Explanation: The correct answer is 80.
Submitted by: Academy of Pakistan
A.Zero at all times
B.Three times the line current
C.Phase current
D.Three times the phase current
Explanation: The correct answer is Zero at all times.
Submitted by: Academy of Pakistan