Neiep 600 Final Exam Review 2024
In capacitors, what is the purpose of the dielectric? - ANSWER Prevent arcing
within the capacitor
Which of the following is true about capacitors in AC circuits? - ANSWER Current
leads voltage all the time
What describes a capacitor s ability to store an electrical charge? - ANSWER
Capacitance
which of the following statements is correct about polarized electrolytic capacitors? -
ANSWER Voltage polarity must be correct
What is the time constant for a circuit with 150k ohms and 2 microfarad capacitor? -
ANSWER .3 seconds
If frequency is increased in a capacitave circuit what will happen? - ANSWER
Capacitive reactance will decrease
What happens in a circuit, when the capacitor voltage equals the source voltage? -
ANSWER Current flow stops in the circuit
In a DC circuit, which is correct about capacitors the instant when power is applied? -
ANSWER Current is maximum
In the circuit shown in figure 1, what will be the total capacitance? - 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? - ANSWER 5
seconds
What happens in a circuit, when the capacitor voltage equals the source voltage? -
ANSWER Current flow stops in the circuit
which statement best describes one time constant of a capacitor? - 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? -
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? - ANSWER 5
seconds
In capacitors, what is the purpose of the dielectric? - ANSWER Prevent arcing
within the capacitor
Which of the following is true about capacitors in AC circuits? - ANSWER Current
leads voltage all the time
What describes a capacitor s ability to store an electrical charge? - ANSWER
Capacitance
which of the following statements is correct about polarized electrolytic capacitors? -
ANSWER Voltage polarity must be correct
What is the time constant for a circuit with 150k ohms and 2 microfarad capacitor? -
ANSWER .3 seconds
If frequency is increased in a capacitave circuit what will happen? - ANSWER
Capacitive reactance will decrease
What happens in a circuit, when the capacitor voltage equals the source voltage? -
ANSWER Current flow stops in the circuit
In a DC circuit, which is correct about capacitors the instant when power is applied? -
ANSWER Current is maximum
In the circuit shown in figure 1, what will be the total capacitance? - 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? - ANSWER 5
seconds
What happens in a circuit, when the capacitor voltage equals the source voltage? -
ANSWER Current flow stops in the circuit
which statement best describes one time constant of a capacitor? - 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? -
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? - ANSWER 5
seconds
