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Electrical Engineering

Electrical engineering is a field of engineering that deals with the study and application of electricity, electronics and electromagnetism.

23,056 Questions

Define energy meter?

The meter constant represents the number of pulses will generated per hour nothing but after n number of pulses the meter reading is incremented by one.

Read more: What_is_the_meter_constant_of_energy_meter

Answer

An energy meter measures the quantity of energy used by an installation. It does this, by monitoring the supply voltage and the in-phase component of the installation's load current.

What is choke coil?

A choke coil is an inductor, which is designed to block a particular frequency in an electrical circuit while passing signals of very less frequency or direct current.

Why was before used the 300 ohm transmission line?

The impedance of a centre fed dipole at resonance is about 73 ohms. The feed impedance of a folded dipole is four times that, 292 ohms. The feedpoint is of course balanced in both cases, thus 300 ohm balanced line is an excellent match for the folded dipole active element of a commercial TV antenna.

What is a shading coil?

A shading coil induces currents to create an additional electrical phase. The coil pauses slightly to control magnetic flux. Delaying magnetic flux allows for a secondary rotating magnetic field to build.

A auto transformer has what kind of induction?

self-induction.

"According to Lenz's law,[6]a changing electric current through a circuit that contains inductance, induces a proportional voltage, which opposes the change in current (self-inductance). The varying field in this circuit may also induce an e.m.f. in neighbouring circuits (mutual inductance)." - Wikipedia

Why are ohmic materials useful?

because ohmic materials such as resistors can be placed in ur bedroom for safe sex

A home generator puts out enough power to run how many applincesat a time?

Not all generators have the same output. Check the manual that came with your generator.

Class px ct?

Class PX is the definition in IEC 60044-1 for the quasi-transient CT formerly covered by Class X of BS-3938, commonly used with unit protection schemes. These are Protection CTs used for Earth fault protection. Knee point voltage is an important parameter for these type of CTs. Shaikh

Show you colors for 2.2 kiloohms resistor?

Three red color bands indicate a resistor value of 2,200 ohms (2.2 kohms)

How do you convert 220V 60 Hz to 220V 50 Hz?

well first off, the electronics in the tv rely on the 50 hz signal to get the clock going right to show the picture, so you'll have to get some sort of power converter, then the tv will only accept PAL signals. So as far as watching broadcasts, it wont recognize NTSC which is used in the US. so if you have a PAL DVD player or something you can watch that, but anything you plug into the TV must be PAL.

17 Ohms to kilohms?

the answer is .017 kilohms. To get this answer you will do a unit converions knowing that 1 kilohms is equal to 1 ohm.

So...

17 ohm * (1 kohm/1000 ohm) = .017



I realize that's a typo, but that conversion should read 1 kilohm is equal to 1000 ohms.

What is the ampacity of the 14 conductors in the conduit application?

14 AWG copper conductors are limited in the NEC to 15 amps. You must protect them with an overcurrent device such as a breaker or fuse not exceeding 15 amps.

What is vernier dial principle standardization?

The voltage drop along the slide wire of potentiometer can be controlled by adjusting the value of working current. The process of adjusting the working current so as to match the voltage drop across the portion of sliding wire against standard reference source is known as standardisation

Why the 3 phase of high voltage conductor or cable transposed?

3 phase cable is transposed to minimize the effect of leakage/capacitance current.

What is a matched load?

the matched load is aresistive load which at (Q=0)which generated from the generator mesur the load at( Ql=Qc)and at it we get high efficancy as losses of T.L P1=mesured P2=(3^.5) V2I2cos fai delta p=p1-p2 eff=p2/p1*100>>>>>>high

Pls tell you if the admission list for futo is out?

why is it that many universities in the federal have resumeed lectures only federal university of technology owerri haven't, why? please tell me i want to know. or do they think that we are foolish for chosing them as our first and second choice?

How do you build a door sensor alarm system using a simple circuit board?

I bought:

reed switch

LED

Buzzer

Button (On/Off)

Resistor (if necessary)

I connected:

<---Button------Reed switch------Resistor (if necessary)------LED------Buzzer---Batteries--->

What is sine wave PMBLDC motor?

Permanent Magnet Brush-Less Direct Current motor. Sine wave driven.