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NEIEP 600 FINAL EXAM 2024 GRADED A+
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NEIEP 600 FINAL EXAM 2024 GRADED A+
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NEIEP 600 FINAL EXAM 2024 GRADED A+1. In capacitors, what is the purpose of the dielectric?: Prevent arcing
within the capacitor
2. Which of the following is true about capacitors in AC circuits?: Current
leads voltage all the time
3. What describes a capacitor s ability to store an electrical charge?:
Capacitance
4. which of the following statements is correct about polarized electrolytic
capacitors?: Voltage polarity must be correct
5. What is the time constant for a circuit with 150k ohms and 2 microfarad
capacitor?: .3 seconds
6. If frequency is increased in a capacitave circuit what will happen?:
Capacitive reactance will decrease
7. What happens in a circuit, when the capacitor voltage equals the source
voltage?: Current flow stops in the circuit
8. In a DC circuit, which is correct about capacitors the instant when power
is applied?: Current is maximum
9. In the circuit shown in figure 1, what will be the total capacitance?: 250
u(micro) farads
10. 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?: 5 seconds
11. which statement best describes one time constant of a capacitor?: The
time it takes to charge to 63.2% of applied voltage
12. If two capacitors in parrallel have equal reactance of 40 ohms what is the
total reactance?: 20ohms
13. Which of the following would increase the DC working voltage DCWV of
a capacitor: Increase the plate area and the dielectric thickness
14. Which statement is correct concerning capacitors?: Increased plate area,
increases capacitance
15. Which of the following is the unit used for measuring capacitance?: Farad
16. Current flow from positive to negative is described as: conventional flow
17. Current flow from negative to positive is called: electron flow
18. By increases the distance between the plates we ________ the charge
capacity: decrease
19. In AC circuits, DCWV should be _________ times the RMS operating
voltage of the circuit.: 2 1/2
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