A capacitor having a capacitance of 20 μF is connected in series with a non-inductive resistance of 120 Ω across a 100-V, 50-Hz supply. Calculate the power.
The given equivalent circuit is critically damped. Find the value of R1 in the given circuit?
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RLC parallel circuit, if current through capacitor and inductor is equal, then, what is the power factor?
Consider the following statements:
i. Power factor will be unity.
ii. Current in circuit will be maximum.
iii. Current in circuit will be minimum.
Which of these statements are correct with respect to resonance in R-L-C parallel circuit?
A two-branch tuned circuit has a coil of resistance R and inductance L in one branch and capacitance C in the second branch. If R is increased, the dynamic resistance:
In the figure shown, the ideal switch has been open for a long time.
If it is closed at t = 0, then the magnitude of the current (in mA) through the 4kΩ resistor at t = 0+ is _______.
While drawing vector diagram for a series circuit, the reference vector is?
What will be the nature of time response if the roots of the characteristic equation are located on the s-plane imaginary axis?
Which of the following quantities give a measure of the transient characteristics of a control system, when subjected to unit step excitation.
1. Maximum overshoot
2. Maximum undershoot
3. Overall gain
4. Delay time
5. Rise time
6. Fall time
The output in response to a unit step input for a particular continuous control system is c(t)= 1-e-t. What is the delay time Td?
The peak percentage overshoot of the closed loop system is :
Which one of the following is the most likely reason for large overshoot in a control system?
The unit step response of a second order system is = 1-e-5t-5te-5t . Consider the following statements:
1. The under damped natural frequency is 5 rad/s.
2. The damping ratio is 1.
3. The impulse response is 25te-5t.
Which of the statements given above are correct?
For the system 2/s+1, the approximate time taken for a step response to reach 98% of its final value is:
Consider a system with transfer function G(s) = s + 6/Ks2 + s + 6. Its damping ratio will be 0.5 when the values of k is:
68 videos|85 docs|62 tests
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68 videos|85 docs|62 tests
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