T5B Concepts, units and calculation of
resistance, inductance and
capacitance
values in series and parallel circuits
T5B01
@T5A01
What
does resistance do in an electric circuit?
A. It stores energy in a magnetic field
B. It stores energy in an electric field
C. It provides electrons by a chemical reaction
D. It opposes the flow of electrons
T5B02
@T5A02
What is
the definition of 1 ohm?
A. The reactance of a circuit in which a
1-microfarad capacitor is
resonant
at 1 MHz
B. The resistance of a circuit in which a 1-amp
current flows when 1
volt is
applied
C. The resistance of a circuit in which a
1-milliamp current flows
when 1
volt is applied
D. The reactance of a circuit in which a
1-millihenry inductor is
resonant
at 1 MHz
T5B03
@T5A03
What is
the basic unit of resistance?
A. The farad
B. The watt
C. The ohm
D. The resistor
T5B04
@T5A04
What is
one reason resistors are used in electronic circuits?
A. To block the flow of direct current while
allowing alternating
current
to pass
B. To block the flow of alternating current
while allowing direct
current
to pass
C. To increase the voltage of the circuit
D. To control the amount of current that flows
for a particular
applied
voltage
T5B05
@T5A05
What is
the ability to store energy in a magnetic field called?
A. Admittance
B. Capacitance
C. Resistance
D. Inductance
T5B06
@T5A08
What is
one reason inductors are used in electronic circuits?
A. To block the flow of direct current while
allowing alternating
current
to pass
B. To reduce the flow of AC while allowing DC
to pass freely
C. To change the time constant of the applied
voltage
D. To change alternating current to direct
current
T5B07
@T5A09
What is
the ability to store energy in an electric field called?
A. Inductance
B. Resistance
C. Tolerance
D. Capacitance
T5B08
@T5A12
What is
one reason capacitors are used in electronic circuits?
A. To block the flow of direct current while
allowing alternating
current
to pass
B. To block the flow of alternating current
while allowing direct
current
to pass
C. To change the time constant of the applied
voltage
D. To change alternating current to direct
current
T5B09
@T5B10
If two
resistors are connected in series, what is their total
resistance?
A. The difference between the individual
resistor values
B. Always less than the value of either
resistor
C. The product of the individual resistor values
D. The sum of the individual resistor values
T5B10
@T5B13
If two
equal-value inductors are connected in parallel, what is their
total
inductance?
A. Half the value of one inductor
B. Twice the value of one inductor
C. The same as the value of either inductor
D. The value of one inductor times the value of
the other
T5B11
@T5B14
If two
equal-value capacitors are connected in series, what is their
total
capacitance?
A. Twice the value of one capacitor
B. The same as the value of either capacitor
C. Half the value of either capacitor
D. The value of one capacitor times the value
of the other