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WorksheetsSelf induction
Total questions: 20
Worksheet time: 16mins
A permanent magnet is quickly introduced into the center of an aluminum closed ring. With this ring ...
will be attracted to the magnet;
push away from the magnet;
remain stationary;
it will start to rotate about an axis passing through its center.
Determine the inductance of the coil if a 5 V self-induction EMF occurs at a rate of change of current of 10 A / s.
5 H
0,5 H
2 H
0,2 H
If you reverse the direction of movement of a magnet influencing a coil, what happens to the current?
reverses
increases
stays same
decreases
What is the greatest inductance core material out of the following?
Air
Copper
Iron
The symbol and units of inductors are
L (Henrys)
C (Conductance)
F (Flux)
C (Farads)
Inductors...
oppose change
like change
The effect on inductance by adding extra coil layers...
increase L
decrease L
An inductor ____.
All of the above
Provides a specific value of inductance
Opposes any change in current
Stores energy in a magnetic field
1 Henry is equivalent to
Weber.Tesla
V.s/A
Tesla/s
Weber.A/s
What is the symbol for Inductance?
I
Z
XL
L
Which of the following electrical symbols is used to represent the electrical component shown above in a circuit?
Select all images showing a type of inductor.
The electrical energy consumed by a coil is stored in the form of:
an electrical field
a force field
an electrostatic field
a magnetic field
Which of the following circuit elements will oppose the change in circuit current?
Capacitance
Inductance
Resistance
All of the above
