Electrical Engineering

inrush uses 2nd order 100 % staror protection in generator protection uses 3rd order overexcitation uses 5th order thanks

in simplifying complex circuits and for different loads this theorem proven very useful

My boyfriend had to be checked every several months the first year. Now the nuerosurgeon wants to see him only once a year unless he has any symptoms of a problem.

Civil engineering deals with civil construction, structural design, buildings, roads, bridges etc

Transformers are used to step up or step down electricity as it moves from the point of generation to the point of consumption.

transformer coupling ensures maximum power transfer is obtained even if the output impedance is not equal to the load impedance

Closed circuit means circuit is complete without any break in between and current is flowing if there is any source.

According to the wave theory, light of any frequency can cause electrons to be ejected as

long as the light is intense enough. A higher intensity corresponds to a greater electric

field magnitude and more energy. Therefore, there should be no frequency below which

the photoelectric effect does not occur. According to the particle theory, however, each

photon carries an amount of energy that depends upon its frequency. Increasing the

intensity of the light increases the number of photons but does not increase the energy of

the individual photons. The cutoff frequency is that frequency at which the energy of the

photon equals the work function. If the frequency of the incoming light is below the

cutoff, the electrons will not be ejected because no individual photon has enough energy

to impart to an electron.

V = IR

Where,

V = voltage

I = current

R = resistance

Thus if resistance is increased with constant voltage current will decrease

The Universe. Or Marko Rodin's ego.

1) It is used for stress releaving at it will spead high voltage and not allowed to concentrate at or near to ground.

2) it is also helful in discharge as it work as a sensor in PD.

Irfan Mulla

Inspection Engineer,

TUV-Nord (I) p Ltd.

09821236469

H.G. Fuse - Horn Gap Fuse

D.O.Fuse - Drop Out Fuse

One million watts.

trivector meters are used to measure kVAh and also kVA of maximum demand.it has a kwh meter and reactive kvah meter in a case with special summator mounted between them.

the age of the battery

If you got a resistor then the resistance R of that thing can be measured in ohms. Use an ohm meter.

If you got a battery then the voltage V of that thing can be measured in volts. USe an volt meter.

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This was George Ohm's idea way back in 1827. Basically he found out that if you measure the potential(voltage) acrossed a conductor(non-changing) that the resulting value(in ohms) is proportional to it potential. Or in other words, V=IR. Since this equation has no exponents or coefficiants the isolated variable is always in proportiion to the other two. The word "ohm" means a measure of resistance or a measure of the difference is V/I.

An electric motor converts electrical energy to kinetic energy.

Various materials examples are:

Concrete

Aluminium

Cast iron

Processor or CPU (Central Processing Unit).

A simple DC motor, like one in a motorized remote control (RC) vehicle, works on a simple electromagnetic principle. The idea is that if you can generate a magnetic field in a coil on a rotor by applying a voltage, and you can set this field up to "buck" against a fixed magnetic field in the case or stator of a device, you can get the applied force to move the rotor. Further, if you can then change the polarity of the applied voltage to the coil as it moves and tends toward an alignment of the magnetic fields, you can get the rotor to rotate continuously. The torque delivered by the interaction of the generated and the fixed magnetic fields will not be linear, but will be sufficient to spin the rotor. The rotor will turn toward a point where the magnetic fields can be "aligned" with Norths to Souths. At a point "half way" through the rotation where the fields are coming into alignment, a set of contacts or brushes on an armature reverse the polarity of the applied voltage to the coil. This sets up a reverse current in the coil, and a reverse magnetic field around the coil. This again "bucks" the stationary field of the stator's permanent magnets. The rotor again responds to the torque generated by the interacting magnetic fields, and it rotates more. And again the commutator breaks the circuit to the coil in the rotor and reverses the polarity of the applied voltage. This process repeats, and the rotor is in continuous motion. Though there are variations on the theme, the simple idea delineated here is what makes the basic DC motor function. Use the links below to learn more.

a motor drives something a generator is driven by something

Rx= recipe = you take

Tx= treatment

recipe for the treatment

"Longshoreman" or "stevedore".

very unreliably it can only tell if it is good but not how good and will tell you if bad but not how bad. it is only good for pass no pass testing.