NEET Online Exam: Trivia Quiz

23 Questions | By Blogblog1968 | Last updated: Mar 19, 2022 | Total Attempts: 231

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1.

The property of inductance offers opposition to which of the following quantities?
- A.
  
  Constant current
- B.
  
  Constant voltage
- C.
  
  Changes in current
- D.
  
  Changes in voltage
2.

What is the symbol for inductance?
- A.
  
  L
- B.
  
  H
- C.
  
  XL
- D.
  
  IND
3.

What is the unit of measurement for inductance?
- A.
  
  Ohm
- B.
  
  Rel
- C.
  
  Farad
- D.
  
  Henry
4.

If 9 volts are induced in a conductor when the current changes by 4.5 amperes in one second, what is the total inductance of the circuit?
- A.
  
  1.5 henries
- B.
  
  2.0 henries
- C.
  
  13.5 henries
- D.
  
  40.0 henries
5.

What physical property is similar to inductance?
- A.
  
  Mass
- B.
  
  Motion
- C.
  
  Velocity
- D.
  
  Inertia
6.

The difference in potential across a resistor, created by current through the resistor is an example of which of the following forces?
- A.
  
  Resistive
- B.
  
  Inertia
- C.
  
  Inductive
- D.
  
  Electromotive
7.

When a magnetic field moves through a stationary conductor, the electrons in orbit are affected in what manner?
- A.
  
  They are dislodged from orbit
- B.
  
  They move closer to their nucleus
- C.
  
  They move closer to other orbiting electrons
- D.
  
  They bunch up on one side of the nucleus
8.

When electrons are moved in a conductor by a magnetic field, a force known by which of the following terms is created?
- A.
  
  Voltage
- B.
  
  Electromotive
- C.
  
  Potential difference
- D.
  
  All of the above
9.

Self-induced emf is also known as what force?
- A.
  
  Magnetic force
- B.
  
  Inertial force
- C.
  
  Electromotive force
- D.
  
  Counter electromotive force
10.

According to Lenz’s Law, the induced emf produced by a change in current in an inductive circuit tends to have what effect on the current?
- A.
  
  It aids a rise in current and opposes fall in current
- B.
  
  It aids a fall in current and opposes a rise in current
- C.
  
  It opposes either a rise or a fall in current
- D.
  
  It aids either a rise or fall in current
11.

The direction of the induced voltage in an inductor may be found by the application of which of the following rules?
- A.
  
  The left-hand rule for inductors
- B.
  
  The left-hand rule for generators
- C.
  
  The right-hand rule for conductors
- D.
  
  The right-hand rule for motors
12.

The left-hand rule for generators states that the thumb of the left-hand points in the direction of motion of the:
- A.
  
  Conductor
- B.
  
  Magnetic field
- C.
  
  Generator poles
- D.
  
  Induced current
13.

When source voltage is removed from a current-carrying conductor, a voltage will be induced in the conductor by which of the following actions?
- A.
  
  The decreasing voltage
- B.
  
  The collapsing magnetic field
- C.
  
  The reversal of current
- D.
  
  The reversing electrical field
14.

The property of inductance is present in which of the following electrical circuits?
- A.
  
  An ac circuit
- B.
  
  A dc circuit
- C.
  
  A resistive circuit
- D.
  
  Each of the above
15.

How are inductors classified?
- A.
  
  By core type
- B.
  
  By conductor type
- C.
  
  By the number of turns
- D.
  
  By the direction of the windings on the core
16.

Normally, most coils have cores composed of either air or:
- A.
  
  Copper
- B.
  
  Carbon
- C.
  
  Soft iron
- D.
  
  Carbon steel
17.

The hollow form of nonmagnetic material found in the center of an aircore coil has what purpose?
- A.
  
  To focus the magnetic flux
- B.
  
  To support the windings
- C.
  
  To act as a low resistance path for flux
- D.
  
  To serve as a container for the core
18.

Which of the following factors will NOT affect the value of inductance of a coil?
- A.
  
  Number of coil turns
- B.
  
  Diameter of the coil
- C.
  
  Conductor tensility
- D.
  
  Core materials used
19.

When the number of turns is increased in a coil from 2 to 4, the total inductance will increase by a factor of?
- A.
  
  Eight
- B.
  
  Two
- C.
  
  Six
- D.
  
  Four
20.

Why do large diameter coils have greater inductance than smaller diameter coils, all other factors being the same?
- A.
  
  Large diameter coils have more wire and thus more flux
- B.
  
  Large diameter coils have less resistance
- C.
  
  Small diameter coils have less resistance
- D.
  
  Small diameter coils have large cemfs which oppose current flow
21.

If the radius of a coil is doubled, its inductance is increased by what factor?
- A.
  
  One
- B.
  
  Two
- C.
  
  Eight
- D.
  
  Four
22.

If the length of a coil is doubled while the number of turns is kept the same, this will have (a) what effect on inductance and (b) by what factor?
- A.
  
  (a) Decrease, (b) by 1/4
- B.
  
  (a) Decrease, (b) by 1/2
- C.
  
  (a) Increase, (b) by 2 times
- D.
  
  (a) Increase, (b) by 4 times
23.

A soft iron core will increase inductance because it has which of the following characteristics?
- A.
  
  Low permeability and low reluctance
- B.
  
  Low permeability and high reluctance
- C.
  
  High permeability and high reluctance
- D.
  
  High permeability and low reluctance