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Electronics - Inductors

@ : Home > Electronics > Inductors > General Questions

Exercise

"Forgiveness is a virtue of the brave."
- Indira Gandhi
1. 

Electricity may be generated by a wire:
A. carrying current
B. wrapped as a coil
C. that has neutral domains
D. passing through a flux field
2. 

In the given circuit, what will the voltage be across R3 25 mu.gifs after the switch is moved to position 2?
A. 2.88 V
B. 5.9 V
C. 8.34 V
D. 14 V
3. 

The electrical energy consumed by a coil is stored in the form of:
A. an electrical field
B. a force field
C. an electrostatic field
D. a magnetic field
4. 

What is magnetic flux?
A. the number of lines of force in webers
B. the number of lines of force in maxwells
C. the number of lines of force in teslas
D. the number of lines of force in flux density
5. 

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
6. 

What type of device consists of a coil with a moveable iron core?
A. solenoid
B. reed switch
C. relay
D. armature
7. 

What is hysteresis?
A. lead between cause and effect
B. lag between cause and effect
C. lead between voltage and current
D. lag between voltage and current

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