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Inductors problems
1. Maximum power will transfer across a transformer when the primary impedance equals the secondary impedance.
Options
A. True
B. False
Show Answer
Scratch Pad
Discuss
Correct Answer: True
2. Inductance is proportional to the cross-sectional area of a coil.
Options
A. True
B. False
Show Answer
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Correct Answer: True
3. In a dc circuit, the only conversion of energy to heat is in the inductance of the coil itself.
Options
A. True
B. False
Show Answer
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Correct Answer: False
4. An RL filter could be a high-pass or a low-pass filter.
Options
A. True
B. False
Show Answer
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Discuss
Correct Answer: True
5. The primary and secondary are in phase.
Options
A. True
B. False
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Correct Answer: False
6. The secondary current in a transformer depends on the secondary voltage and load resistance values.
Options
A. True
B. False
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Correct Answer: True
7. The time constant of an inductive circuit is dependent on the circuit's resistance.
Options
A. True
B. False
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Correct Answer: True
8. Inductors are not as versatile as capacitors.
Options
A. True
B. False
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Correct Answer: True
9. The output of the secondary winding is 15 V.
Options
A. True
B. False
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Discuss
Correct Answer: True
10. Faraday's law states that the polarity of induced voltage in a coil is in opposition to the current change through that coil.
Options
A. True
B. False
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Correct Answer: False
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More in Electronics:
Alternating Current and Voltage
Alternating Current vs Direct Current
Analog and Digital Converters
Analog to Digital
Arithmetic Operations and Circuits
Basic Op-Amp Circuits
Bipolar Junction Transistors (BJT)
Capacitors
Combinational Logic Circuits
Computer Hardware and Software
Diodes and Applications
Field Effect Transistors (FET)
Flip-Flops and Timers
Inductors
Logic Circuit Simplification
Logic Gates
Magnetism and Electromagnetism
Measurement, Conversion and Control
Number Systems and Codes
Ohm's Law
Operational Amplifiers
Parallel Circuits
Programmable Logic Devices (PLD)
Quantities and Units
RC Circuits
Resistance and Power
RL Circuits
RLC Circuits and Resonance
Semiconductor Memory
Semiconductor Principles
Sequential Logic Circuits
Series-Parallel Circuits
Series Circuits
Special-Purpose Op-Amp Circuits
Standard Logic Devices (SLD)
Testing and Troubleshooting
Thyristors and Tranducers
Time Response of Reactive Circuits
Transformers
Transistors and Applications
Voltage and Current
