Recent questions tagged electric

0 answers 21 views

Briefly describe the electric field of a static charge.

asked Jun 29 by Shimroz123
0 answers 10 views

List three important characteristics of an electric circuit.

asked Jun 29 by Shimroz123
1 answer 21 views

A) Watt B) Volts C) Farad D) Ampere

asked Jun 28 in Multiple Choice Questions by Shimroz123
1 answer 13 views

Options: A) WATT B) AMPERE C) VOLTS D) OHM

asked Jun 28 in Multiple Choice Questions by Shimroz123
1 answer 19 views

Electric power formula

asked Jun 11 by Shimroz123
1 answer 11 views

Nodal Analysis of Electric Circuits Example

asked May 21 by Shimroz123
1 answer 51 views

Describe the reason of using dc series motor for electric trains.

asked Sep 18, 2018 in Electrical Machine by Shimroz123
1 answer 4 views

List four electric pressure transducer.

asked Sep 8, 2018 by Shimroz123
1 answer 10 views

"Hydro electric power station are not perennial power station". Justify.

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
2 answers 27 views

State any four advantages and four disadvantages of diesel electric power plant. 

asked Sep 7, 2018 by Shimroz123
1 answer 56 views

List out the four applications of diesel electric power plant.

asked Sep 7, 2018 by Shimroz123
1 answer 10 views

List out any four effects of electric current used in measuring instruments & write name of meter working on it.

asked Sep 6, 2018 by Shimroz123
2 answers 19 views

State various effects of electric current and explain any one.

asked Sep 4, 2018 by Shimroz123
3 answers 31 views

Compare electric and magnetic circuit.

asked Aug 8, 2018 by Quiz
1 answer 26 views

Draw a typical electric circuit including ammeter and voltmeter.

asked Aug 8, 2018 by Quiz
1 answer 73 views

I am a new student of electrical and electronic engineering, and facing some problems on sign related, kvl as well as mesh current analysis. By getting solution of these problems, I may get rid of these problems. For figure 4, please just write the seven mesh equations only, solution is not needed.

asked Jul 28, 2018 by foysal shadhin
1 answer 15 views

The electric breakdown strength of insulating materials depends on  (A) Nature of applied voltage (B) lmperfection of dielectric material (C) Pressure, temperature and humidity (D) All or these

asked May 8, 2018 in Electric Power Transmission by Shimroz123
1 answer 20 views

kWh meter is the electric meter that measures the amount of electrical _________ in kWh that was consumed in the house.  (A) Energy (B) Current (C) Voltage (D) None of the above

asked May 8, 2018 in Electrical Engineering by Shimroz123
1 answer 25 views

An _____________is a network of electrical components used to supply, transfer and use electric power:  (A) Electric power system (B) Electric power (C) All of the above (D) None of the above

asked May 8, 2018 in Power system by Shimroz123
1 answer 945 views

The motor used for electric traction is  (1) D.C. shunt motor (3) D.C. series motor  (2) D.C. compound motor (4) Synchronous motor

asked May 1, 2018 in Utilization of electrical energy 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 13 views

Identify the correct combination of respective Electric arc welding and Electric resistance welding methods :  (A) Butt welding and Seam welding  (B) Hydrogen shielding and Projection welding  (C) Seam welding and Coated electrode welding  (D) Coated electrode welding and Hydrogen shielding

asked Apr 30, 2018 in Utilization of electrical energy by Shimroz123
1 answer 22 views

Choose the correct order of electric discharge lamps in their increasing order of efficiencies (lumens/watt) :  (A) Sodium vapour lamp, Mercury vapour lamp, Neon lamp  (B) Neon lamp, Sodium vapour lamp, Mercury vapour lamp  (C) Neon lamp, Mercury vapour lamp, Sodium vapour lamp  (D) Mercury vapour lamp, Sodium vapour lamp, Neon lamp

asked Apr 30, 2018 in Utilization of electrical energy by Shimroz123
1 answer 28 views

The storage battery generally used in electric power stations is  (1) zinc carbon battery (2) lead acid battery (3) nickel cadmium battery (4) lithium -ion battery

asked Apr 29, 2018 in Power system by Shimroz123
1 answer 24 views

The ability of materials to become polarized under an applied electric field is called _______ A) Ferroelectricity B) Paraelectricity C) Polectricity D) None of these

asked Apr 29, 2018 in Electrical Engineering by Shimroz123
1 answer 14 views

Which of the following is the name given to the lines of electric force which move so that its beginning traces a closed curve on a positive surface and its end traces a corresponding closed curve on the negative surface? A) Tube of surface B) Tube of lines C) Tube of force D) Tube of electricity

asked Apr 29, 2018 in Electrical Engineering by Shimroz123
1 answer 57 views

The electric field inside a hollow conducting sphere ________ A) Depends on the diameter of the sphere  B) Varies according to the direction of earth’s magnetic poles C) Is zero  D) None of these

asked Apr 29, 2018 in Electrical Engineering by Shimroz123
1 answer 27 views

Specific energy consumption of an electric train is the ratio between (A) Specific energy output at driving wheels and efficiency of the traction motor (B) Specific energy output at driving wheels and efficiency of the transmission gear (C) Specific energy output of driving motor and efficiency of the driving wheels (D) Specific energy output at driving wheels and efficiency of the (motor + transmission gear)

asked Apr 28, 2018 in Power Electronic Controlled Drives by Shimroz123
1 answer 52 views

In electric traction for a trapezoidal speed-time curve, the time period is (A) free running speed period = constant speed period (B) free running period = coasting period (C) free running period + coasting period = constant speed period (D) average speed period = scheduled speed period

asked Apr 28, 2018 in Power Electronic Controlled Drives by Shimroz123
1 answer 23 views

The terminal characteristics of a dc generator suitable for electric welders is (A) separately excited generator (B) shunt generator (C) series generator (D) differentially compounded generator

asked Apr 28, 2018 in Electrical Engineering by Shimroz123
1 answer 32 views

When electric current passes through a bucket full of water, lot of bubbling is observed. This suggests that the type of supply is?

asked Mar 25, 2018 in Basic concepts by Shimroz123
1 answer 20 views

When electric current passes through a metallic conductor, its temperature rises. This is due to?

asked Mar 25, 2018 in Basic concepts by Shimroz123
1 answer 19 views

Electric current passing through the circuit produces?

asked Mar 25, 2018 in Basic concepts by Shimroz123
1 answer 42 views

Heat in a conductor is produced on the passage of electric current due to?

asked Mar 25, 2018 in Basic concepts by Shimroz123
1 answer 14 views

The filament of an electric bulb is made of?

asked Mar 25, 2018 in Basic concepts by Shimroz123
1 answer 18 views

An instrument which detects electric current is known as?

asked Mar 25, 2018 in Basic concepts by Shimroz123
1 answer 7 views

Electric pressure is also called?

asked Mar 25, 2018 in Basic concepts by Shimroz123
1 answer 18 views

Power factor of electric bulb is?

asked Mar 25, 2018 in Electrical Engineering by Shimroz123
2 answers 23 views

Losses which occur in rotating electric machines and do not occur in transformers are?

asked Mar 19, 2018 in Transformer by Shimroz123
2 answers 27 views

The efficiencies of transformers compared with that of electric motors of the same power are?

asked Mar 19, 2018 in Transformer by Shimroz123
1 answer 17 views

MOSFET uses the electric field of?

asked Mar 19, 2018 in MOSFET by Shimroz123
1 answer 32 views

An electric motor in which both stator field and rotor rotates with same speed is called?

asked Mar 18, 2018 in Synchronous machine by Shimroz123

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