IEC Year 2 Semester 2 2024
n n n n n
In a 60 Hertz system, the voltage will go to "0" ___ times per second? -
n n n n n n n n n n n n n n n
nANS>D.
120
What type of magnet is used for the coil in a relay? - ANS>C.
n n n n n n n n n n n n n
electromagnet
___ flow equals current flow. - ANS>C.
n n n n n n
Electron
______ law states "charged bodies attract or repel each other with a force
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that is directly proportional to the product of the charges and inversely pr
n n n n n n n n n n n n n
oportional to the square of the distance between them." - ANS>D.
n n n n n n n n n n
Coulomb's
If the RMS value is 125 volts, what is the peak value? - ANS>D.
n n n n n n n n n n n n n
176.75
If the RMS value is 125 volts, what is the peak value? - ANS>D.
n n n n n n n n n n n n n
,176.75
Which of the symbols, shown below, is used to represent an inductor in a
n n n n n n n n n n n n n n
schematic circuit? - ANS>C. n n n
Electrical current is the flow of ___. - ANS>B.
n n n n n n n n
electrons
Which of the formulas, shown below, is correct to find the total of three c
n n n n n n n n n n n n n n
apacitors in a series circuit? - ANS>B.
n n n n n n
Which of the formulas, shown below, is correct to find the equivalent of t
n n n n n n n n n n n n n
hree inductors in a parallel circuit? - ANS>A.
n n n n n n n
As current flow through a conductor increases, the magnetic field strengt
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h ___. - ANS>C.
n n n
increases
Current flow through a conductor creates a magnetic field around the con
n n n n n n n n n n n
ductor. - ANS>B. n n
True
,A change in the magnetic field surrounding the conductor induces a volta
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ge in the conductor. This induced voltage is known as ___. - ANS>B.
n n n n n n n n n n n n
Counter EMF n
A ___ is a device that converts electrical energy into a linear force. -
n n n n n n n n n n n n n
ANS>D.
n
solenoid
A ___ is a device that attracts iron and steel because of the molecular alig
n n n n n n n n n n n n n n
nment of its material. - ANS>D.
n n n n n
magnet
Nonferrous materials, such as copper, ___ attracted by the magnetic field
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around a magnet. - ANS>B. n n n n
are not n
Permanent magnets are used in the construction of ___ motors.I. AC II. D
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C - ANS>D.
n n
II only
n
The invisible magnetic lines that leave the north pole and enter the south
n n n n n n n n n n n n n
pole of a magnet are ___. - ANS>A.
n n n n n n n
lines of flux n n
, Two unlike poles of magnets brought together cause the magnets to ___
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each other. - ANS>C.n n n
attract
The basic law of magnetism states that unlike poles (south and north, for
n n n n n n n n n n n n n
example) ___ each other. - ANS>A. n n n n n
attract
As two magnetic poles of the same polarity get closer together the force o
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f ___ gets stronger. - ANS>B.
n n n n n
repulsion
If the current flowing through a coil of wire is increased, the magnetic fiel
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d strength ___. - ANS>C.
n n n n
also increases
n
A coil of wire, when carrying current, acts like a ___. - ANS>B.
n n n n n n n n n n n n
magnet
A coil of wire wrapped around an iron core is a(n) ___ when it carries curr
n n n n n n n n n n n n n n n
ent. - ANS>D.
n n
n n n n n
In a 60 Hertz system, the voltage will go to "0" ___ times per second? -
n n n n n n n n n n n n n n n
nANS>D.
120
What type of magnet is used for the coil in a relay? - ANS>C.
n n n n n n n n n n n n n
electromagnet
___ flow equals current flow. - ANS>C.
n n n n n n
Electron
______ law states "charged bodies attract or repel each other with a force
n n n n n n n n n n n n
that is directly proportional to the product of the charges and inversely pr
n n n n n n n n n n n n n
oportional to the square of the distance between them." - ANS>D.
n n n n n n n n n n
Coulomb's
If the RMS value is 125 volts, what is the peak value? - ANS>D.
n n n n n n n n n n n n n
176.75
If the RMS value is 125 volts, what is the peak value? - ANS>D.
n n n n n n n n n n n n n
,176.75
Which of the symbols, shown below, is used to represent an inductor in a
n n n n n n n n n n n n n n
schematic circuit? - ANS>C. n n n
Electrical current is the flow of ___. - ANS>B.
n n n n n n n n
electrons
Which of the formulas, shown below, is correct to find the total of three c
n n n n n n n n n n n n n n
apacitors in a series circuit? - ANS>B.
n n n n n n
Which of the formulas, shown below, is correct to find the equivalent of t
n n n n n n n n n n n n n
hree inductors in a parallel circuit? - ANS>A.
n n n n n n n
As current flow through a conductor increases, the magnetic field strengt
n n n n n n n n n n
h ___. - ANS>C.
n n n
increases
Current flow through a conductor creates a magnetic field around the con
n n n n n n n n n n n
ductor. - ANS>B. n n
True
,A change in the magnetic field surrounding the conductor induces a volta
n n n n n n n n n n n
ge in the conductor. This induced voltage is known as ___. - ANS>B.
n n n n n n n n n n n n
Counter EMF n
A ___ is a device that converts electrical energy into a linear force. -
n n n n n n n n n n n n n
ANS>D.
n
solenoid
A ___ is a device that attracts iron and steel because of the molecular alig
n n n n n n n n n n n n n n
nment of its material. - ANS>D.
n n n n n
magnet
Nonferrous materials, such as copper, ___ attracted by the magnetic field
n n n n n n n n n n n
around a magnet. - ANS>B. n n n n
are not n
Permanent magnets are used in the construction of ___ motors.I. AC II. D
n n n n n n n n n n n n
C - ANS>D.
n n
II only
n
The invisible magnetic lines that leave the north pole and enter the south
n n n n n n n n n n n n n
pole of a magnet are ___. - ANS>A.
n n n n n n n
lines of flux n n
, Two unlike poles of magnets brought together cause the magnets to ___
n n n n n n n n n n n n
each other. - ANS>C.n n n
attract
The basic law of magnetism states that unlike poles (south and north, for
n n n n n n n n n n n n n
example) ___ each other. - ANS>A. n n n n n
attract
As two magnetic poles of the same polarity get closer together the force o
n n n n n n n n n n n n n
f ___ gets stronger. - ANS>B.
n n n n n
repulsion
If the current flowing through a coil of wire is increased, the magnetic fiel
n n n n n n n n n n n n n
d strength ___. - ANS>C.
n n n n
also increases
n
A coil of wire, when carrying current, acts like a ___. - ANS>B.
n n n n n n n n n n n n
magnet
A coil of wire wrapped around an iron core is a(n) ___ when it carries curr
n n n n n n n n n n n n n n n
ent. - ANS>D.
n n
