Electrical Engineering

when a current flow through the coil then flux produced around the coil . if the flux linked same produced coil only then the flux is said to be leakage flux.

flux produced by one coil ,but linked with another coil then the flu is said to be mutual flux.

• 1st check the power supply switch whether on or off
• then Check the all wiring connections may be wire disconnected or there is any loose connection(OFF the switch).
• smell the component whether it is heated or not and touch to experiance the heat(OFF the switch).
• replace the controller/motor with new one to detect fault present in which part.

1.Current in the coil produces a magnetic field

also accept "the coil becomes an electromagnet"

or "the coil is magnetized"

2.The magnet is repelled or attracted

also accept "the field or coil exerts a force on the

magnet"

Portable appliance testing (PAT) is basically a method of testing (using a device and by sight) that any electrical equipment, cables, devices, machinery is safe to use.

Without conductors, electrons do not flow where you want them to flow. An electrical circuit is a flow of electrons.

The resistance of an air gap is effectively infinite until it reaches its arcover threshold voltage; then it drops to near zero as the air in the gap ionizes. It returns to effectively infinite when the current through the gap is insufficient to keep the air ionized.

Without seeing the circuit involved no real answer can be given. I would guess you have a diagram of the circuit, tracing it out should answer your question.

Because a negative feedback system "closes the loop" based on a temperature sensor in the tip of the iron. This makes the temperature of the iron nearly constant whether sitting idle on the stand or being used to solder a massive joint. Without this negative feedback the temperature of the open loop iron would rise significantly when sitting idle on the stand and fall significantly when being used to solder a massive joint.

It changes mechanical energy to electricity.

circuit characteristics.

Bioenvironmental

Ferdinand stacking wood for prospero

lol

Electronic Circuit

Nichrome alloy is designed to retain a constant resistance over a wide range of temperatures. So it is considered to be 'ohmic' or 'linear' because, when plotting current against voltage, it produces a straight-line graph, for variations in voltage.

So, yes, nichrome obeys Ohm's Law.

Yes because the transformer heating (power losses) depend on the load current and the load voltage.

It can be assumed that the voltage stays more or less constant, therefore the iron loss is also constant. The copper loss depends on the square of the load current.

So it is the VA of the load that determines the power loss and any heating.

An isolator is just a disconnector ; it disconnects the load from the supply. The method of operating the isolator can be through a handle or through a spring or through a motor. Isolators can be on-load isolators , which can be switched off on load , or they can be off-load isolators which should not be switched off on load.

A Miniature Circuit Breaker can break or open in the event of a fault. Thus its load carrying capacity is extremely high , up to 10 kiloamperes or more.

What this means is that if a short circuit current to the tune of 10 kA flows through an isolator , it will melt the isolator contacts , and the damage can be irrepairable. When the same current flows through an MCB , the breaker will trip , without suffering any permanent damage. Thus an MCB is a protective device.

drop

improved communication

The "current choking" means that the maximum capacity of a transformer is not being utilized. To prevent it from ever reaching its maximum capacity a lower value of over current protection or fuse is installed. The purpose is to use larger capacity transformer available but using smaller distribution and cables just sufficient for the application to lower the installation cost.

A transformer is a device that transfers electrical energy from one circuit to another through inductively coupled wires. A changing current in the first circuit (the primary) creates a changing magnetic field; in turn, this magnetic field induces a changing voltage in the second circuit (the secondary). By adding a load to the secondary circuit, one can make current flow in the transformer, thus transferring energy from one circuit to the other.

A choke is an inductor designed to have a high reactance to a particular frequency when used in a signal-carrying circuit.

An electrical ballast (sometimes called control gear) is a device intended to limit the amount of current flowing in an electric circuit.

Ballasts vary greatly in complexity. They can be as simple as a series resistor as commonly used with small neon lamps. For higher-power installations, too much energy would be wasted in a resistive ballast, so alternatives are used that depend upon the reactance of inductors, capacitors, or both. Finally, ballasts can be as complex as the computerized, remote-controlled electronic ballasts used with fluorescent lamps.

The transmission lines which have length less than 80 km are generally referred as short transmission lines. For short length, the shunt capacitance of this type of line is neglected and other parameters like electrical resistance and inductor of these short lines are lumped.

"Rotary Inverter:

In a rotary inverter, DC electricity input powers a DC motor that turns an AC generator. Rotary inverters are reliable and produce a pure sine-wave output. These inverters have automatic load demand: they begin operation once a load is activated, and shut down when the load is removed. Disadvantages of a rotary inverter are lack of frequency control, low surge capability (50% above maximum rating) and lower efficiency (50% to 80%). Rotary inverters are not as common as electronic inverters."