Question
Download Solution PDFIdentify the circuit.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven circuit has an inductor with inductance value 1 mH and a resistor with 100 kΩ, the output is taken across the resistor.
Hence the according to voltage division the output voltage:
Here XR = 100 kΩ
XL = jωL = jω × 10-3 Ω
- For small values of frequency (ω) the values of XLis very small compared to XR hence the Vo is equal to Vin.
- At very high frequencies the value of XL will be far greater than XR hence Vo will tend towards zero.
Hence the circuit acts as a low pass filter which allows AC signals at low frequencies and blocks very high-frequency signals.
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