NEIEP 600 FINAL EXAM QUESTIONS &
CORRECT ANSWERS
What describes a capacitor s ability to store an electrical charge? - correct answer
✔✔Capacitance
Which of the following is true about capacitors in AC circuits? - correct answer ✔✔Current leads
voltage all the time
In capacitors, what is the purpose of the dielectric? - correct answer ✔✔Prevent arcing within
the capacitor
which of the following statements is correct about polarized electrolytic capacitors? - correct
answer ✔✔Voltage polarity must be correct
What is the time constant for a circuit with 150k ohms and 2 microfarad capacitor? - correct
answer ✔✔.3 seconds
If frequency is increased in a capacitave circuit what will happen? - correct answer
✔✔Capacitive reactance will decrease
What happens in a circuit, when the capacitor voltage equals the source voltage? - correct
answer ✔✔Current flow stops in the circuit
In a DC circuit, which is correct about capacitors the instant when power is applied? - correct
answer ✔✔Current is maximum
, In the circuit shown in figure 1, what will be the total capacitance? - correct answer ✔✔250
u(micro) farads
If a circuit has a capacitor of 5 microfrauds and a source voltage of 120 volts DC through a
resistance of 200k, how long will it take to fully charge? - correct answer ✔✔5 seconds
What happens in a circuit, when the capacitor voltage equals the source voltage? - correct
answer ✔✔Current flow stops in the circuit
which statement best describes one time constant of a capacitor? - correct answer ✔✔The time
it takes to charge to 63.2% of applied voltage
In a DC circuit, which is correct about capacitors the instant when power is applied? - correct
answer ✔✔Current is maximum
If a circuit has a capacitor of 5 microfrauds and a source voltage of 120 volts DC through a
resistance of 200k, how long will it take to fully charge? - correct answer ✔✔5 seconds
If two capacitors in parrallel have equal reactance of 40 ohms what is the total reactance? -
correct answer ✔✔20ohms
Which of the following would increase the DC working voltage DCWV of a capacitor - correct
answer ✔✔Increase the plate area and the dielectric thickness
Which statement is correct concerning capacitors? - correct answer ✔✔Increased plate area,
increases capacitance
Which of the following is the unit used for measuring capacitance? - correct answer ✔✔Farad
CORRECT ANSWERS
What describes a capacitor s ability to store an electrical charge? - correct answer
✔✔Capacitance
Which of the following is true about capacitors in AC circuits? - correct answer ✔✔Current leads
voltage all the time
In capacitors, what is the purpose of the dielectric? - correct answer ✔✔Prevent arcing within
the capacitor
which of the following statements is correct about polarized electrolytic capacitors? - correct
answer ✔✔Voltage polarity must be correct
What is the time constant for a circuit with 150k ohms and 2 microfarad capacitor? - correct
answer ✔✔.3 seconds
If frequency is increased in a capacitave circuit what will happen? - correct answer
✔✔Capacitive reactance will decrease
What happens in a circuit, when the capacitor voltage equals the source voltage? - correct
answer ✔✔Current flow stops in the circuit
In a DC circuit, which is correct about capacitors the instant when power is applied? - correct
answer ✔✔Current is maximum
, In the circuit shown in figure 1, what will be the total capacitance? - correct answer ✔✔250
u(micro) farads
If a circuit has a capacitor of 5 microfrauds and a source voltage of 120 volts DC through a
resistance of 200k, how long will it take to fully charge? - correct answer ✔✔5 seconds
What happens in a circuit, when the capacitor voltage equals the source voltage? - correct
answer ✔✔Current flow stops in the circuit
which statement best describes one time constant of a capacitor? - correct answer ✔✔The time
it takes to charge to 63.2% of applied voltage
In a DC circuit, which is correct about capacitors the instant when power is applied? - correct
answer ✔✔Current is maximum
If a circuit has a capacitor of 5 microfrauds and a source voltage of 120 volts DC through a
resistance of 200k, how long will it take to fully charge? - correct answer ✔✔5 seconds
If two capacitors in parrallel have equal reactance of 40 ohms what is the total reactance? -
correct answer ✔✔20ohms
Which of the following would increase the DC working voltage DCWV of a capacitor - correct
answer ✔✔Increase the plate area and the dielectric thickness
Which statement is correct concerning capacitors? - correct answer ✔✔Increased plate area,
increases capacitance
Which of the following is the unit used for measuring capacitance? - correct answer ✔✔Farad
