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Rise time of an amplifier is defined as time required

This question was previously asked in
IPRC (ISRO) Technician B (Electronics) 2018 Official Paper (Held on 22 April 2018)
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  1. To change from 0 to 100% of its final value
  2. To change from 0 to 50% of its final value
  3. To change from 10 to 90% of its final value
  4. To change from 10 to 100% of its final value

Answer (Detailed Solution Below)

Option 3 : To change from 10 to 90% of its final value
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Detailed Solution

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Rise time (tr): It is specified as the transition time for an input signal to rise from 0.1 to 0.9 times of signal's max output value.

Additional Information

Bandwidth(B.W.): It is defined as the range of frequencies over which the majority of the signal passes.

tr × B.W. = 0.35

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More Time Response Analysis Questions

Q1.Consider a causal second-order system with the transfer function \(G(s)=\frac{1}{s^2+2 s+1}\) with a unit-step \(R(s)=\frac{1}{s}\) as an input. Let c(s) be the corresponding output. The time taken by the system output c(t) to reach 94% of its steady-state value \(\displaystyle \lim _{t \rightarrow \infty} c(t)\), rounded off to two decimal places, is
Q2.The output of a standard second-order system for a unit-step input is given as \(y(t)=1-\frac{2}{\sqrt{3}} e^{-t} \cos \left(\sqrt{3} t-\frac{\pi}{6}\right)\). What is the transfer function of the system?
Q3.A second-order system has a closed-loop transfer function given by \(G(s)=\frac{25}{s^2+8 s+25}\). The settling time for 5 percentage band in tolerance error is
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Q5.Steady state error is the value of error signal when:
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Q7.The nature of the response shown below is:
Q8.When the damping ratio ζ (zeta) lies in between 0 < ζ < 1, then the circuit classification comes under:
Q9.For a critically damped system, the type of closed loop poles are:
Q10.The time required for the response curve to reach and stay within the specified 2-5% of final value is referred to as :
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Q1.Explain the pattern and trend of public expenditure on social services in the post reforms period in India. To what extent this has been in consonance with achieving objective of inclusive growth? 
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