Exam 18: Capacitive Reactance
Exam 1: Introduction45 Questions
Exam 2: Electricity39 Questions
Exam 3: Resistors46 Questions
Exam 4: Ohms Law42 Questions
Exam 5: Series Circuits45 Questions
Exam 6: Parallel Circuits45 Questions
Exam 7: Series-Parallel Circuits47 Questions
Exam 8: Voltage Dividers and Current Dividers43 Questions
Exam 9: Analog and Digital Multimeters47 Questions
Exam 10: Kirchhoff S Laws42 Questions
Exam 11: Network Theorems47 Questions
Exam 12: Conductors and Insulators47 Questions
Exam 13: Batteries46 Questions
Exam 14: Magnetism43 Questions
Exam 15: Electromagnetism48 Questions
Exam 16: Alternating Voltage and Current42 Questions
Exam 17: Capacitance49 Questions
Exam 18: Capacitive Reactance37 Questions
Exam 19: Capacitive Circuits49 Questions
Exam 20: Inductance45 Questions
Exam 21: Inductive Reactance41 Questions
Exam 22: Inductive Circuits44 Questions
Exam 23: RC and LR Time Constants44 Questions
Exam 24: Alternating Current Circuits50 Questions
Exam 25: Complex Numbers for Ac Circuits44 Questions
Exam 26: Resonance50 Questions
Exam 27: Filters46 Questions
Exam 28: Three-Phase Ac Power Systems49 Questions
Exam 29: Diodes and Diode Applications44 Questions
Exam 30: Bipolar Junction Transistors42 Questions
Exam 31: Transistor Amplifiers47 Questions
Exam 32: Field Effect Transistors45 Questions
Exam 33: Power Amplifiers47 Questions
Exam 34: Thyristors43 Questions
Exam 35: Operational Amplifiers49 Questions
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There is no capacitive charge or discharge current when an applied ac source is not changing.
(True/False)
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In the formula for capacitive reactance, the constant factor 2π is always ______________.
(Short Answer)
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A very common application for a capacitor is to block ______________.
(Short Answer)
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The rate of voltage change, dv/dt, for a sine wave, is determined by both its amplitude and its frequency.
(True/False)
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For parallel reactances, the combined reactance is calculated by the ______________ formula.
(Short Answer)
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Capacitive reactance is ______________ proportional to frequency.
(Short Answer)
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In the capacitive reactance formula, the constant factor 2? is always 2 times 3.14, which equals 6.28.
(True/False)
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Capacitive reactance is a measure of a capacitor's ______________ to the flow of alternating current.
(Short Answer)
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When a capacitor charges and discharges with a varying voltage applied, ______________ current can flow.
(Short Answer)
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In a capacitive circuit, if the applied voltage is an rms value
(Multiple Choice)
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The general use of capacitive reactance is to block direct current but provide low reactance for alternating current.
(True/False)
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Capacitive reactance is a measure of a capacitor's opposition to the flow of direct current.
(True/False)
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Capacitive reactance is inversely proportional to the capacitance.
(True/False)
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The rate of voltage change, dv/dt, for a sine wave, is determined by its
(Multiple Choice)
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