BARC EE : Subject Revision Quiz 2

In the given RL series circuit, where R = 100 Ω & L = 5 H, the switch is closed at t = 0. If an input voltage of 80 V is applied to the given circuit, then what will be the expression of current flowing in the circuit.

For a system having closed loop transfer function,. Determine the settling time with 5% tolerance.

Calculate the power consumed in a three phase AC circuit in which the load is delta connected. The system is supplied by a line voltage of 400 V and supplying a phase current of 25 A at a power factor angle of 30^o.

The characteristic equation of feedback control system is given by 2 s⁴ + s³ + 2 s² + 5s + 8 = 0. The number of roots in the right half of s plane is

In a parallel RLC circuit, current in circuit at resonance will be:

A unity feedback system has an open loop transfer function,

The steady state error to an input

r(t) = 12t² + 4t + 2

In a small industry, which having 2 heater which are rated 1.5 kW, 4 fans which rated at 120 W and a refrigerator of 2 kW. If these load are continuing to run for 15 day on a daily basis of 3 hours, then what will be the energy consumed during this period.

A unity feedback system having the open loop transfer function , then the value of velocity error coefficient ‘K_v’.

In a magnetically coupled circuit having L₁ = 2 H, L₂ = 6 H and the mutual inductance between L₁ and L₂ is 2 H. Then calculate the value of coupling coefficient ‘k’?

For a system having error function,  has an steady state error, ess = 0.02, then determine the value of ‘K’, if the step input is provided to the system.

If the open loop transfer function of a system is . Then which one of the following is the polar plot of the given system.

In an oscillating LC circuit with L = 50 mH and C = 4 μF, the current is initially a maximum. How long will it take before the capacitor is fully discharged for the first time

What is the expression for h₂₂ in the network shown below?

The overall transfer function of a control system is given by

The resonant peak is:

An inductor of 4H is charged when switch is connected to ‘a’. At t = 0sec

switch is moved from ‘a’ to ‘b’. Calculate the instant at which current in the given circuit will be 36.9% of its initial value.

The asymptotic bode plot for the gain magnitude of a minimum phase system G(s) is shown in figure

The system G(s) is  . The value of A will be

The value of alternating emf E in the given circuit will be

V_R = 80 V, V_L = 40 V and V_C = 100 V

The transfer function of a system is given as settling time is 4 sec (Assuming 2% tolerance band)

The frequency of damped oscillation is:

The system is originally critically damped. If the gain is doubled then it will become: