The maximum value of a controller output is 100 V and is obtained when the input error is 1 V.If the controller is working at 20% proportional band,the error and output will be respectively
Consider the following Nyquist plot
With which one of the following transfer functions, does the above Nyquist plot match?
The forward path transfer function of an unity feedback system is given by
\(G(s)=\frac{100}{s^{2}+10s+100}\)The frequency response of this system will exhibit the resonance peak at
-
Solution
For unity feed back system shown in fig. the transfer function is
If input is 30t2, then steady state error is
-
Solution
For the system of fig. the total steady state error due to a unit step input and a unit step disturbance is
-
Solution
At an industrial sub-station with a 4MW load, a capacitor of 2 MVAR is installed to maintain the load power factor at 0.97 lagging. If the capacitor goes out of service, the load power factor becomes in lagging is _______.
-
Solution
Determine the voltage across 1W resistance.
-
Solution
Every voltage source is connectd in parallel with resistance,which we can replace with voltage source directly as voltage across resistance is same as voltage source.Now,first see current passing through 4V is 1A,
Current passing through 3V is 1A + 2A = 3A
So on, current passing through 1V is and current passing through 1Ω resistance is 10 A + 5A =15A (1 + 2 +3 + 4) A = 10 A
So, voltage across 1Ω resistance
= 15 A × 1Ω= 15 V
Having established steady state in position A the switch in the circuit shown below is moved to position B. Att = 0, iR(0+) in ampere is _________.
-
Solution
Having established steady state in position A, the switch in the circuit is moved to position B at t = 0.Let us assume that the switch was closed at t = – ∞ and how we are at t = 0– instant i.e., an infinite amount of time the independent DC source is connected to the network and hence the circuit is in steady state.In steady state, capacitor acts as open circuit.
Consider the following registers
1.Accumulator and B registers
2.B and C registers
3.D and E registers
4.H and L registers
Which of these 8-bit registers of 8085 μP can be paired together to make a 16-bit register?
The transmission parameter A of the network shown below is ________.
-
Solution