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logseq/bak/pages/G5A/2025-05-01T18_48_55.969Z.Desktop.md

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+G5A – Reactance; inductance; capacitance; impedance; impedance transformation; resonance
+
+- [[G5A01]] (C)
+What happens when inductive and capacitive reactance are equal in a series LC circuit?
+	- A. Resonance causes impedance to be very high
+	- B. Impedance is equal to the geometric mean of the inductance and capacitance
+	- C. Resonance causes impedance to be very low
+	- D. Impedance is equal to the arithmetic mean of the inductance and capacitance
+--
+- [[G5A02]] (B)
+What is reactance?
+	- A. Opposition to the flow of direct current caused by resistance
+	- B. Opposition to the flow of alternating current caused by capacitance or inductance
+	- C. Reinforcement of the flow of direct current caused by resistance
+	- D. Reinforcement of the flow of alternating current caused by capacitance or inductance
+--
+- [[G5A03]] (D)
+Which of the following is opposition to the flow of alternating current in an inductor?
+	- A. Conductance
+	- B. Reluctance
+	- C. Admittance
+	- D. Reactance
+--
+- [[G5A04]] (C)
+Which of the following is opposition to the flow of alternating current in a capacitor?
+	- A. Conductance
+	- B. Reluctance
+	- C. Reactance
+	- D. Admittance
+--
+- [[G5A05]] (D)
+How does an inductor react to AC?
+	- A. As the frequency of the applied AC increases, the reactance decreases
+	- B. As the amplitude of the applied AC increases, the reactance increases
+	- C. As the amplitude of the applied AC increases, the reactance decreases
+	- D. As the frequency of the applied AC increases, the reactance increases
+--
+- [[G5A06]] (A)
+How does a capacitor react to AC?
+	- A. As the frequency of the applied AC increases, the reactance decreases
+	- B. As the frequency of the applied AC increases, the reactance increases
+	- C. As the amplitude of the applied AC increases, the reactance increases
+	- D. As the amplitude of the applied AC increases, the reactance decreases
+--
+- [[G5A07]] (D)
+What is the term for the inverse of impedance?
+	- A. Conductance
+	- B. Susceptance
+	- C. Reluctance
+	- D. Admittance
+--
+- [[G5A08]] (C)
+What is impedance?
+	- A. The ratio of current to voltage
+	- B. The product of current and voltage
+	- C. The ratio of voltage to current
+	- D. The product of current and reactance 
+--
+- [[G5A09]] (B)
+What unit is used to measure reactance?
+	- A. Farad
+	- B. Ohm
+	- C. Ampere
+	- D. Siemens
+--
+- [[G5A10]] (D)
+Which of the following devices can be used for impedance matching at radio frequencies?
+	- A. A transformer
+	- B. A Pi-network
+	- C. A length of transmission line
+	- D. All these choices are correct
+--
+- [[G5A11]] (B)
+What letter is used to represent reactance?
+	- A. Z
+	- B. X
+	- C. B
+	- D. Y
+--
+- [[G5A12]] (D)
+What occurs in an LC circuit at resonance? 
+	- A. Current and voltage are equal
+	- B. Resistance is cancelled
+	- C. The circuit radiates all its energy in the form of radio waves
+	- D. Inductive reactance and capacitive reactance cancel