AC Theory Level 2 Questions and Correct
Answers|Updated
Solve for the impedance, and then angle theta for the circuit shown. (Round the
FINAL answers to at least two decimal places in the specified unit.)
Resistance=120, inductance= 80.
Z=144.22, Angle Theta=33.69
Solve for the total current, power factor, and phase angle for the circuit shown.
(Round the FINAL answers to at least two decimal places in the specified
unit.)V=120, F=60, L=10, R=1500
It=29.57, Power factor=36.97%, Angle Theta= 68.3
What is the total capacitance of the circuit shown? Calculate to the nearest
whole number of the unit specified. R1=7, R2=4, C1=0.3µ, C2=0.2µ, C=0.1µ (All
in series)
55nF
, A series circuit contains 40 ohms of resistance (R) and 70 ohms of capacitive
reactance (Xc). When 100 volts AC are applied, how much current flows? (Round
the FINAL answer to two decimal places.)
1.24A
A circuit has an applied voltage of 240 volts and draws 5 amperes. The power
factor is 70%. What is the true power?
840W
The current vector diagram represents the values of IR, IL, IT, and angle theta for
the circuit shown. Place each label and value in the appropriate locations. (Be
sure to place variables to the left and values to the right of the equals sign.)
R=30, Xl=40 (all in Parallel), V=120, F=60
X axis= Ir-4A
Y axis=Il-3A
Hypt.= It-5A
A circuit has an applied voltage of 240 volts and draws 5 amperes. The power
factor is 70%. What is the apparent power? The values calculated for this
question will be used for additional questions.
1200VA
Answers|Updated
Solve for the impedance, and then angle theta for the circuit shown. (Round the
FINAL answers to at least two decimal places in the specified unit.)
Resistance=120, inductance= 80.
Z=144.22, Angle Theta=33.69
Solve for the total current, power factor, and phase angle for the circuit shown.
(Round the FINAL answers to at least two decimal places in the specified
unit.)V=120, F=60, L=10, R=1500
It=29.57, Power factor=36.97%, Angle Theta= 68.3
What is the total capacitance of the circuit shown? Calculate to the nearest
whole number of the unit specified. R1=7, R2=4, C1=0.3µ, C2=0.2µ, C=0.1µ (All
in series)
55nF
, A series circuit contains 40 ohms of resistance (R) and 70 ohms of capacitive
reactance (Xc). When 100 volts AC are applied, how much current flows? (Round
the FINAL answer to two decimal places.)
1.24A
A circuit has an applied voltage of 240 volts and draws 5 amperes. The power
factor is 70%. What is the true power?
840W
The current vector diagram represents the values of IR, IL, IT, and angle theta for
the circuit shown. Place each label and value in the appropriate locations. (Be
sure to place variables to the left and values to the right of the equals sign.)
R=30, Xl=40 (all in Parallel), V=120, F=60
X axis= Ir-4A
Y axis=Il-3A
Hypt.= It-5A
A circuit has an applied voltage of 240 volts and draws 5 amperes. The power
factor is 70%. What is the apparent power? The values calculated for this
question will be used for additional questions.
1200VA
