Circuits

When a fuse wire melts, the electrical energy is transferred as heat energy and light energy.

an electromagnet

Check if the element that is be use to electroplate is not corrossive.

Transmission line efficiency is power at the recieving-end of the line compared to the power at the sending-end of the line and is expressed as a percentage, so this can be formulated.

% efficiency = load power (output) / source power (input) x 100

In the line, there are power losses. to calculate this we use the formula:

power loss = 3.I2.R where I is current and R is resistance.

Now that we have the losses, we know the difference between the input and the output. So, for example, if one had the output value known, then to get the input we just add the loss to the output or if had the input known, just subtract the loss from it to get the output.

hope that helps

it is the coiled wire that heats up and gives off light in a incandescent (ordinary) light bulb.

All small appliance branch circuits, typically kitchen, are required to be 12awg. Cu., or 20 amp.

I've seen it called "hallway wiring".

The idea is the same in both cases . . . there's a switch at both ends, and either switch

can turn the light on and off, regardless of the position of the other switch.

That way, a single person can turn the light on at one end of the hallway or staircase,

walk up the stairs or through the hallway, and turn the light off when he reaches the

other end.

Current through that part of the circuit will stop.

capacitor

Classification is the putting of objects in to different categories or 'classes'. It is important because it helps people find certain objects with certain features quickly and efficiently.

Max power transfer takes place when the total load impedance

is equal to the source (power supply) internal impedance.

It is a component or substance which reduces the flow of electricity in a circuit. Their will be one in your mobile phone charger to stop 240/230 volts being routed into your phone( which would probably charge it very quickly but then it would blow up!) Also a resistor is the opposite of a conductor i.e something that resists conducting electricity.

a switch is used to isolate the a flow of current through a circuit , by breaking its connection, there is often a switch at the beginning of a circuit which would isolate the supply - voltage , from the load or " circuit " ,

in terms of higher - rated voltage circuits ( mains power) ;

the switch performs a safety function where it provides a quick , safe and effective means of swathing off the circuit , providing a safety function - purpose , allowing the user to quickly remove power in the event of an emergency ,

for the switch to carry out its duty, it needs to have an air gap across its contacts contained within , rated so that at the designed/ rated voltage it maintains safety isolation / not allowing an electric arc / spark to jump across the gap .

You could us a higher volt battery (cell).

No, copper wire cannot be used to make the filament of an electric bulb as copper wire has very low resistance. Therefore, the bulb will not glow if current is passed.

It would also melt - the filament has to be white-hot to be any use!

An Ammeter provides a visual display of the magnitude of the current flowing through it.

Ideally, the ammeter does nothing "in the circuit". You don't want your test equipment

to change anything going on in the circuit you're measuring.

Before you spend that kind of money, try the simple things first.

If the transformer housing is bolted together and/or bolted to

the chassis of the amp, tighten all the bolts.

Even if there are no bolts visible, do some experimenting with

a strong clamp: With the amp turned on and the transformer

humming away, go around the transformer housing and apply

the clamp to it, carefully, in various places and in various directions.

You may find a place where putting the squeeze on it either stops

or reduces the hum.

One other thought: A humming transformer can be an overloaded one.

If the transformer gets extremely hot after the amp operates for a

while, and especially if smoke ever comes out of the amp, then the

humming is a definite clue that there is a problem, but the problem

is not the transformer.

Resistance is the ability to regulate the amount of charge flowing in a circuit.

DC

mi stands for moving iron in ammeter used only in alternating current circuits

Neither is better or worse than the other. A potentiometer is an adjusting device usually for voltage while a voltmeter is a device for measuring the voltage. They are just two different things.

Resistor in IC are made of semiconductor structures in a manner similar to transistors and PN junctions

A thousandth of an amp