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Power Electronics in Electrical Engineering MCQs: 217 practice questions with answer choices and available explanations. Page 4 of 15.

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Basic 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

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The curve between V and I of SCR when anode is positive w.r.t cathode and when anode is negative w.r.t cathode are known as________?

0
A.former as reverse characteristics and later as forward characteristics
B.both as forward characteristics
C.both as reverse characteristics
D.former as forward characteristics and later as reverse characteristics
Explanation: The correct answer is former as forward characteristics and later as reverse characteristics.

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An SCR is made up of silicon because?

0
A.Silicon has a larger leakage voltage than germanium
B.Silicon has a smaller leakage voltage than germanium
C.Silicon has a larger leakage current than germanium
D.Silicon has a smaller leakage current than germanium
Explanation: The correct answer is Silicon has a smaller leakage current than germanium.

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