Year 2024

Week # 1 Quiz 3

Q1. In a three phase system, if the instantaneous voltage values of phase R and Y are +60 V and –40 V respectively, then the instantaneous voltage of phase B is

Q2. Pure inductive circuit

Q3. If the material has negative temperature coefficient, the resistance ______ with increase in temperature.

Q4. Kirchhoff's current law is applicable only

Q5. During parallel resonance,

Q6. The unit of capacitance is

Q7. The transfer function \(\frac{Y(s)}{U(s)}\) of a system described by the state equations,
\(\frac{dx}{dt}=-2x+2u\) and \(y(t) = 0.5x\) is:

Q8. The transfer function of a control system is given as \(G(s)=\frac{1}{s^2+2s+1}\)​. The poles of the system are located at:

Q9. A system is stable for

Q10. Feedback oscillations have a closed loop gain of (where G, H are gain of forward and feedback path)