Question: A low pass filter has a time constant of τ . <em>its gain at a frequency </em><em>ω is,</em>
Answer:
MCQ: A low pass filter has a time constant of τ . <em>its gain at a frequency </em><em>ω is,</em>
Correct Answer:
A. √(1+ (ωτ)<sup>2</sup> )
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Related Questions
- 1. A high pass filter has a time constant of τ, its gain at a frequency ω is,
- 2. A input circuit of variable resistance transducer consists of a ballast resistance, in series with the transducer resistance R<sub>t</sub> . The resistance of the transducer for a particular input is kR<sub>i</sub>, where k is a constant. If the input circuit is supplied by an input voltage e<sub>i</sub>. The sensitivity of the transducer is
- 3. In a voltage sensitive Wheatstone, having each arm having a resistance R, the resistance of one of the arm is changed to R+∆R where ∆R≪R. the Wheatstone bridge is supplied with an input voltage of e<sub>i</sub>, the output voltage on account of unbalance is
- 4. The bridge sensitivity factor for a Blumlein bridge using two inductive transducers in push pull arrangement is,
- 5. In a Blumlein bridge using two capacitive transducers in push pull configuration, the bridge sensitivity factor above the resonance frequency for a tightly coupled bridge is ,
- 6. A low pass RC filter acts as a pure integrator when_______where ω = applied frequency and τ = time constant of RC circuit.
- 7. A high pass RC filter acts as a pure differentiator when______________where ω = applied frequency and τ = time constant of RC circuit.
- 8. An 8 bit converter is used for a d.c range of 0-10V. find the weight of LSB.
- 9. A 5 bit D/A converter has a current output. The digital input is 10100 and the output current corresponding to this is 10 mA. What will be output current for digital input of 11101?
- 10. A successive approximation A/D converter has a resolution 20 mV. What will be its digital output for an analog input of 2.17 V ?
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