A.Faraday’s laws
B.Lenz’s law
C.Ampere’s law
D.Kirchhoffs law
Explanation: The correct answer is Ampere’s law.
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Electrical Engineering MCQs: 3,658 practice questions with answer choices and available explanations. Page 85 of 244.
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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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Electrical Engineering MCQs
Showing page 85 of 244 · 3,658 total solved questions available.
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A.1500 ohms
B.1000 ohms
C.500 ohms
D.2000 ohms
Explanation: The correct answer is 1000 ohms.
Submitted by: Academy of Pakistan
A.15 V
B.21.21 V
C.10.60 V
D.0 V
Explanation: The correct answer is 10.60 V.
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A.disconnect motor from the supply till it stops then reconnect it to supply with reversed connection of main or auxiliary winding
B.reverse the direction of connections of the auxiliary winding and immediately connect it to supply
C.reverse the direction of connection of the auxiliary winding and after motor comes to rest then connect auxiliary winding to the supply
D.disconnect motor from supply and immediately reconnect it to supply with reversed connections of the main winding
Explanation: The correct answer is disconnect motor from the supply till it stops then reconnect it to supply with reversed connection of main or auxiliary winding.
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A.As a number
B.In volts
C.None of the above
D.In dB
Explanation: The correct answer is In dB.
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A.junction J3 is in forward bias and J1, J2 is in reverse bias.
B.Junction J1 and J2 is in forward bias and J3 is in reverse bias.
C.Junction J1, J3 is in reverse bias and J2 is in forward bias.
D.junction J2 is in reverse bias and J1, J3 is in forward bias.
Explanation: The correct answer is junction J2 is in reverse bias and J1, J3 is in forward bias..
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A.copper loss
B.total loss
C.none of the above
D.efficiency
E.insulation resistance
F.core loss
Explanation: The correct answer is core loss.
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A.voltage drop both in primary and secondary becomes large
B.secondary output is much less as compared to primary input
C.copper loss becomes high in proportion to the output
D.iron loss is increased considerably
Explanation: The correct answer is copper loss becomes high in proportion to the output.
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A.none of the above
B.both of the above
C.instantaneous
D.delayed
Explanation: The correct answer is instantaneous.
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A.8 joules
B.2 joules
C.4 joules
D.6 joules
Explanation: The correct answer is 8 joules.
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A.inertia forces
B.internal forces
C.friction
D.stored energy
Explanation: The correct answer is stored energy.
Submitted by: Academy of Pakistan
The product of apparent power and cosine of the phase angle between circuit voltage and current is
0A.reactive power
B.volt-amperes
C.true power
D.instantaneous power
Explanation: The correct answer is true power.
Submitted by: Academy of Pakistan
A.impedance
B.None of the above
C.Current
D.Voltage
Explanation: The correct answer is Voltage.
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A.the pressure in the turbine rotor gradually decreases from inlet to exit from condenser
B.the pressure in the turbine rotor is approximately same as in con¬denser
C.the pressure in the turbine rotor is higher than pressure in the con¬denser
D.none from the above
Explanation: The correct answer is the pressure in the turbine rotor is approximately same as in con¬denser.
Submitted by: Academy of Pakistan
A.Low voltage winding
B.Secondary winding
C.Primary winding
D.High voltage winding
Explanation: The correct answer is Low voltage winding.
Submitted by: Academy of Pakistan