Question
Download Solution PDFA Q-meter is supplied with an oscillator having a 500 mV output voltage, While testing an unknown inductor, the voltage across the variable capacitor of the Q-meter, measured by a digital voltmeter, is obtained as 10 V. the Q-factor of the inductor is
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
Q-meter works on the principle of resonance i.e.
XL = XC Or VL = VC
Q factor of Q-meter is given as:
\(Q=\frac{V_C}{V}\)
Where,
VC = Voltage across capacitor
V = Total applied voltage
Calculation:
V = 500mV
VC = 10V
\(Q=\frac{V_C}{V}\)
\(Q=\frac{10}{500\times10^{-3}}\)
Q = 20
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