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Free download in PDF Inductance Short Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
41
On a schematic, dashed lines between two vertical coils usually mean the transformer has:
[A]
a ferrite core
[B]
an iron core
[C]
an air core
[D]
a nonmetallic core
42
What is hysteresis?
[A]
lag between cause and effect
[B]
lead between cause and effect
[C]
lead between voltage and current
[D]
lag between voltage and current
Answer: lag between cause and effect
43
What is magnetic flux?
[A]
the number of lines of force in teslas
[B]
the number of lines of force in maxwells
[C]
the number of lines of force in flux density
[D]
the number of lines of force in webers
Answer: the number of lines of force in webers
44
The units for inductance is _________ and capacitance is ___________
[A]
Henry, Faraday
[B]
Henry, Coulomb
[C]
Coulomb, Faraday
[D]
Faraday, Henry
45
The Inductor doesn’t allow sudden changes in ___________
[A]
Current
[B]
Inductance
[C]
Resistance
[D]
Voltage
46
If the current in one coil is steady, what happens to the mutual inductance?
[A]
Halves
[B]
Zero
[C]
Infinity
[D]
Doubles
47
The electrical energy consumed by a coil is stored in the form of:
[A]
a magnetic field
[B]
an electrostatic field
[C]
an electrical field
[D]
a force field
48
As current travels within a conductor:
[A]
the magnetic field aids the current
[B]
a magnetic field is developed around it
[C]
the wire tries to point north
[D]
an electrostatic field opposes the current
Answer: a magnetic field is developed around it
49
What type of device consists of a coil with a moveable iron core?
[A]
solenoid
[B]
reed switch
[C]
relay
[D]
armature
50
A series RL filter circuit with an output across the inductor will result in what type of filtering?
[A]
passing of the higher frequencies
[B]
passing of the lower frequencies
[C]
blocking of the higher frequencies
[D]
blocking of a certain range of frequencies
Answer: passing of the higher frequencies
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