Can you help by answering this question?

An op-amp can be represented by...

Recent questions tagged system

1 answer 9 views

What are the disadvantages of Open loop control system?

asked Jul 4 by Shimroz123
0 answers 41 views
asked Nov 6, 2018 by Power system
1 answer 23 views

With a neat diagram, explain back pressure steam turbine co-generation system.

asked Sep 23, 2018 in Energy Conservation And Audit by Shimroz123
1 answer 40 views

With neat diagram explain the following terms: (i) Steam turbine co-generation system (ii) Gas turbine co-generation system

asked Sep 22, 2018 in Energy Conservation And Audit by Shimroz123
1 answer 52 views

Explain following techniques related to energy conservation in transmission and distribution system. (i) By balancing phase currents (ii) Variable technical losses (I2R losses).

asked Sep 22, 2018 in Energy Conservation And Audit by Shimroz123
1 answer 19 views

Describe the following energy conservation methods of lighting system. i) By replacing lamp sources ii) Using light control gears.

asked Sep 22, 2018 in Energy Conservation And Audit by Shimroz123
4 answers 70 views

Draw block diagram of instrumentation system. State function.

asked Sep 8, 2018 by Shimroz123
1 answer 8 views

State the functions of fuel system and exhaust system of a diesel power station.

asked Sep 8, 2018 by Shimroz123
1 answer 402 views

Draw the block diagram of basic wind energy conversion system and write function of each block. 

asked Sep 8, 2018 by Shimroz123
1 answer 4 views

Explain starting system in diesel electric power plant.

asked Sep 8, 2018 by Shimroz123
1 answer 5 views

Explain fuel system and air intake system in diesel electric power plant.

asked Sep 8, 2018 by Shimroz123
1 answer 7 views

State any four advantages of interconnected system.

asked Sep 7, 2018 by Shimroz123
1 answer 4 views

State the functions of following elements: i) Diesel engine system ii) Air intake system iii) Engine exhaust system iv) Engine starting system.

asked Sep 7, 2018 by Shimroz123
1 answer 18 views

What is the choice of size and number of generator units in interconnected power system?

asked Sep 7, 2018 by Shimroz123
1 answer 16 views

Explain significance and purpose of electrical measurement system.

asked Sep 6, 2018 by Shimroz123
0 answers 15 views
0 answers 50 views

What is line voltage and phase voltage? Draw balanced three phase star connected system. Show all the voltages and currents.

asked Aug 11, 2018 in Basic electrical and electronics engineering by Quiz
0 answers 65 views

Write short notes on 3 phase AC system.

asked Aug 11, 2018 in Electrical Engineering by Shimroz
1 answer 1,937 views

What are the components of system bus? A) CPU Bus, Address Bus, Data Bus B) Memory, Control Unit, ALU C) Data Bus, Address Bus, Control Bus D) Register, PC, IR

asked Jun 18, 2018 in Computer Engineering by Shimroz123
1 answer 86 views

The clock frequency of an 8085 microprocessor based system is 3 MHz. What should be the minimum pulse width of the INTR signal so that it is recognized successfully? A) 5.6 µs B) 5.7 µs C) 5.8 µs D) 5.9 µs

asked Jun 18, 2018 in Microprocessors and Microcontrollers by Shimroz123
1 answer 26 views

The command line interpreter that enables the users to interact with operating system is called the A) Window B) Shell C) Process D) Kernel 

asked Jun 18, 2018 in Electronics Engineering by Shimroz123
1 answer 36 views

What will happen to the gain margin if the gain of the open loop system is doubled? A) Doubled B) Becomes half C) Is not affected D) Becomes one-fourth 

asked Jun 18, 2018 in Control System by Shimroz123
1 answer 27 views

What is the time response of a system whose poles lie on the right hand side of s-plane? A) Exponentially increasing B) Exponentially decreasing C) Sinusoidal oscillations D) Step response 

asked Jun 18, 2018 in Control System by Shimroz123
1 answer 19 views

Given a unity feedback system with G(s)=k/s (s+4), the value of k for damping ratio of 0.5 is

asked May 8, 2018 in Control System by Zeeshan
1 answer 23 views

The permissible voltage variation in transmission and distribution system is:  (A) ± 0.1% (B) ± 1% (C) ±10% (D) ± 25%

asked May 8, 2018 in Electrical Engineering by Shimroz123
1 answer 21 views

If the displayed system time and date is wrong, you can reset it using :  (A) Task bar (B) Menu bar (C) Desk top (D) Control panel

asked May 8, 2018 in Computer Engineering by Shimroz123
1 answer 19 views

Which of the following is the least expensive protection for over current in low voltage system?  (A) Rewireable fuse (B) Isolator (C) Oil Circuit breaker (D) Air break circuit breaker

asked May 8, 2018 in Electrical Engineering by Zeeshan
1 answer 19 views

A system is linear if and only if it satisfies

asked May 3, 2018 in Control System by Shimroz123
1 answer 31 views

How can the steady-state error in a system be reduced?  (1) By decreasing the type of system (2) By increasing system gain (3) By decreasing the static error constant (4) By increasing the input

asked May 1, 2018 in Control System by Shimroz123
1 answer 24 views

A control system having unit damping factor will give  (1) Oscillatory response (2) Undamped response (3) Critically damped response (4) No response

asked May 1, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 39 views

Phase margin is the amount of angle to make the system  (1) Oscillatory (2) Stable (3) Unstable (4) Exponential

asked Apr 30, 2018 in Control System by Shimroz123
1 answer 44 views

If the gain of the open loop system is doubled, the gain margin  (1) Is not affected (2) Gets doubled (3) Becomes half (4) Becomes one -forth

asked Apr 30, 2018 in Control System by Shimroz123
1 answer 15 views

The stability of the power system is not affected by  (1) generator reactance (2) line reactance (3) line losses (4) output torque

asked Apr 30, 2018 in Power system by Shimroz123
1 answer 26 views

Generally in a power system network, the load is represented as a :  (A) Constant power in both load flow study and in stability study  (B) Constant power in load flow study and constant impedance in stability study  (C) Constant power in stability study and constant impedance in load flow study  (D) Constant impedance in both load flow study and in stability study

asked Apr 30, 2018 in Power system by Shimroz123
1 answer 32 views

In quadrilateral speed-time curve of electric traction system, the accelerations during successive time periods are ______ respectively.  (A) positive, negative and negative (B) positive, zero and negative (C) positive, positive and negative (D) positive, negative and zero

asked Apr 30, 2018 in Switchgear And Protection by Shimroz123
1 answer 17 views

A differentiator is not usually used in control system, because it : - (A) reduces damping  (B) increases error  (C) reduces gain margin  (D) increases input noise

asked Apr 30, 2018 in Control System by Shimroz123
1 answer 19 views

A lightening arrester connected between the line and earth in a power system  (1) protects the terminal equipment against travelling surges (2) protects the transmission line against direct lightening strokes (3) suppresses high frequency oscillations in the line (4) reflects back the travelling wave approaching it

asked Apr 29, 2018 in Switchgear And Protection by Shimroz123
1 answer 34 views

The main criterion for selection of the size of a radial distribution system is

asked Apr 29, 2018 in Power system by Shimroz123
1 answer 36 views

In voltage source converter based HVDC transmission system the active power is controlled by changing (A) phase angle of the converter ac input voltage (B) supply frequency of the converter ac input voltage (C) magnitude of the converter ac input voltage (D) DC voltage at the inverter terminals

asked Apr 28, 2018 in High voltage engineering by Shimroz123
1 answer 283 views

The sequence components of current of a single-phase load connected to a 3-phase system are (A) equal positive and negative sequence components (B) equal positive, negative and zero sequence components (C) vector sum of sequence currents is zero (D) algebraic sum of sequence currents is zero

asked Apr 28, 2018 in Power system by Shimroz123
1 answer 18 views

The benefit of power factor correction in a power system is (A) lower power consumption (B) increased demand charge (C) reduced load carrying capabilities in existing lines (D) reduced voltage profile

asked Apr 28, 2018 in Power system by Shimroz123
1 answer 14 views

If non-linear loads are connected to the power system, then (A) displacement power factor is same as the total power factor (B) displacement power factor is not equal to the total power factor (C) displacement power factor is due to harmonic currents (D) total power factor is due to fundamental component of current

asked Apr 28, 2018 in Power system by Shimroz123
1 answer 17 views

In Torque-Voltage analogy, the Moment of Inertia of a mechanical rotational system is analogous to (A) Capacitance C. (B) Inductance L. (C) Resistance R. (D) Inductive reactance XL

asked Apr 28, 2018 in Control System by Shimroz123
1 answer 11 views

Observability of a system is essential for (A) finding a solution to the state equation. (B) finding a suitable model in state space. (C) transferring the state of the system from any initial value to any specified final value. (D) state estimation.

asked Apr 28, 2018 in Control System by Shimroz123
1 answer 26 views

A unity negative feedback control system is found to have a gain margin of 20 dB. The Nyquist plot of the system (A) crosses the real axis at +0.1 (B) crosses the real axis at -0.1. (C) crosses the imaginary axis at -0.1 (D) crosses the imaginary axis at +0.1

asked Apr 28, 2018 in Control System by Shimroz123
1 answer 21 views

A second order system shows 100% overshoot in its unit step response. It can be categorized as (A) underdamped system. (B) overdamped system. (C) Critically damped system. (D) undamped system.

asked Apr 28, 2018 in Control System by Shimroz123
1 answer 16 views

The line current in a balanced delta system is 30 A. The load current is (A) 30√3 A (B) 30/√3 A (C) 10 A (D) 30/√2 A

asked Apr 28, 2018 in Network Analysis by Shimroz123
1 answer 106 views

If a 5-bus test system contains 6 transmission lines and one transformer, how many non-zero elements are there in the system Y-bus ? (A) 25 (B) 12 (C) 11 (D) 19

asked Apr 28, 2018 in Power system by Shimroz123
1 answer 446 views

A single core cable is designed to work for a single phase system with a peak voltage of 220 kV. The maximum permissible stress in the dielectric is not to exceed 20 kV/mm. For economical size, the overall core diameter of the cable is (A) 28.2 mm (B) 26.4 mm (C) 24.4 mm (D) 22.0 mm

asked Apr 28, 2018 in Electrical Engineering by Shimroz123

Welcome to electronics2electrical.com here you can ask questions related to electrical, electronics, mechanical, telecommunication, instrumentation, computer, mathematics, physics etc.
Be respectful to all the members. Do not copy and paste the answers from other websites which have copyright content. While asking question give full details about it.

Categories

Most popular tags

power motor dc circuit transformer voltage current used system phase resistance factor synchronous load ac energy induction electric generator series frequency between speed capacitor use electrical meter line difference control type mosfet transmission magnetic plant high single instrument bjt unit source advantages function diode and machine winding field define torque parallel amplifier supply shunt thyristor motors electricity arduino maximum time relay armature problem value on transformers types coil diagram state flow ratio material three formula starting direction theorem method emf operating efficiency digital wave microprocessor test instruments inductance loss measure operation connected signal low applications effect single-phase network temperature working constant losses different law wattmeter measuring compare controlled breaker drive device logic rc full switch flux wire resistivity disadvantages free of materials machines angle force converter conductor transistor gain open protection scr core measurement number bridge principle generators reactance circuits negative the friction iron loop short pole battery conservation steam resistors hysteresis computer using analog lines secondary station gate a rectifier inverter linear induced relays nuclear capacitance basic characteristics design direct work rotor electronics ammeter forces diesel damping rlc connection factors capacitors minimum insulation moving regulation running self systems air fault range main stability quality starter igbt eddy alternator ideal rl average 3-phase plants arc thermal error fuzzy biasing dielectric pressure balanced superposition errors copper rotation feedback impedance measured electronic electrons charge inductive transfer explain start off back curve over solar is three-phase tariff locomotive peak bias zener engineering commutator surge conductors rating universal potentiometer density permanent mechanical transducer capacity memory adc excitation two fuse pure harmonics application semiconductor inductor internal pmmc reaction welding resonance traction permeability breakers rms designed electromagnetic si generation brushes switching capacitive shaded rate 1 distribution resistor methods delta star oscillator reluctance simplification algebra 8085 boolean weston dynamometer insulating strength installation definition fuel heating earth units

8,450 questions

7,047 answers

132 comments

3,084 users

...