Neiep 600 Final Test Questions with Correct Answers

Neiep 600 Final Test Questions with Correct Answers 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