Electrical Measurements Advanced Problems Qmeter Online Exam Quiz
Electrical Measurements Advanced Problems Qmeter GK Quiz. Question and Answers related to Electrical Measurements Advanced Problems Qmeter. MCQ (Multiple Choice Questions with answers about Electrical Measurements Advanced Problems Qmeter
In a Q Meter, the values of tuning capacitor are C3 and C4 for resonant frequencies f3 and 2f4 respectively. The value of distributed capacitance is?
Options
A : frac{C_3-C_4}{2}
B : frac{C_3-2C_4}{3}
C : frac{C_3-4C_4}{3}
D : frac{C_3-3C_4}{2}
A circuit tuned to a frequency of 1.5 MHz and having an effective capacitance of 150 pF. In this circuit, the current falls to 70.7 % of its resonant value. The deviates from the resonant frequency are 5 kHz. Effective resistance of the circuit is?
Options
A : 2 ?
B : 3 ?
C : 5.5 ?
D : 4.7 ?
A circuit tuned to a frequency of 1.5 MHz and having an effective capacitance of 150 pF. In this circuit, the current falls to 70.7 % of its resonant value. The frequency deviates from the resonant frequency by 5 kHz. Q factor is?
Options
A : 50
B : 100
C : 150
D : 200
Q factor of a coil measured by the Q Meter is _________ the actual Q of the coil.
Options
A : Equal to
B : Same but somewhat lesser than
C : Same but somewhat higher than
D : Not equal to
The function of the Q- Meter is to _________
Options
A : Measure capacitance
B : Measure inductance
C : Measure quality factor of capacitor and inductor
D : Measure form factor of capacitor and inductor
Consider a circuit consisting of two capacitors C1 and C2. Let R be the resistance and L be the inductance which are connected in series. Let Q1 and Q2 be the quality factor for the two capacitors. While measuring the Q value by the Series Connection method, the value of the Q factor is?
Options
A : Q = frac{(C_1 – C_2 ) Q_1 Q_2}{Q_1 C_1 – Q_2 C_2}
B : Q = frac{(C_2 – C_1 ) Q_1 Q_2}{Q_1 C_1 – Q_2 C_2}
C : Q = frac{(C_1 – C_2 ) Q_1 Q_2}{Q_2 C_2 – Q_1 C_1}
D : Q = frac{(C_2 – C_1 ) C_1 C_2}{Q_1 C_1 – Q_2 C_2}
Consider a circuit consisting of two capacitors C1 and C2. Let R be the resistance and L be the inductance which are connected in series. Let Q1 and Q2 be the quality factor for the two capacitors. While measuring the Q value by the Parallel Connection method, the value of the Q factor is?
Options
A : Q = frac{(C_1 – C_2 ) Q_1 Q_2}{Q_1 C_1 – Q_2 C_2}
B : Q = frac{(C_2 – C_1 ) Q_1 Q_2}{Q_1 C_1 – Q_2 C_2}
C : Q = frac{(C_1 – C_2 ) Q_1 Q_2}{Q_2 C_2 – Q_1 C_1}
D : Q = frac{(C_2 – C_1 ) C_1 C_2}{Q_1 C_1 – Q_2 C_2}
Q Meter is used to measure _________
Options
A : Q factor of an inductive coil
B : Only the effective resistance
C : Only bandwidth
D : Q factor of an inductive coil, the effective resistance, and bandwidth
Q meter operator is the principle of __________
Options
A : Series resonance
B : Current resonance
C : Self-inductance
D : Eddy currents
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