Name: 
 

Chapter 10



Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

1. 

The standard measure of inductance is the ____.
a.
frank
c.
lenz
b.
henry
d.
none of the above
 

2. 

The polarity of the ____ voltage is determined by the polarity of the magnetic field in relation to the direction of movement.
a.
applied
c.
linear
b.
induced
d.
DC
 

3. 

When using Fleming's generator rule, the forefinger points in the direction of the ____.
a.
current induced into the armature
b.
thrust
c.
field flux
 

4. 

When using Fleming's generator rule, the center finger shows the direction of the ____.
a.
current induced into the armature
b.
thrust
c.
field flux
 

5. 

When using Fleming's generator rule, the thumb points in the direction of the ____.
a.
current induced into the armature
b.
thrust
c.
field flux
 

6. 

In magnetic measurement, 100,000,000 lines of magnetic flux are equal to one ____.
a.
coulomb
c.
fleming
b.
henry
d.
weber
 

7. 

____ law states that an induced voltage or current opposes the motion that causes it.
a.
Henry's
c.
Fleming's
b.
Lenz's
d.
Weber's
 

8. 

A coil wound on a core made of magnetic material such as silicon steel or soft iron is referred to as a(n) ____ inductor.
a.
shorted
c.
iron core
b.
donut
d.
conducting
 

9. 

While inductance is proportional to the number of turns of wire, the type of core material used, and the cross-sectional area of the core, it is inversely proportional to the core ____.
a.
area
c.
length
b.
diameter
d.
radius
 

10. 

An exponential curve shows the rate at which current increases or decreases in a(n) ____.
a.
conductor
c.
insulator
b.
inductor
d.
resistor
 



 
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