What are amps,volts and ohms? What do they do?

Answer 1

They are measures of electricity currents

Answer 2

Ohm's Law states that 1 volt is the electrical force required to move 1 ampere of current through a resistance of 1 ohm.

Think of volts as the potential. Like water in a tank in the attic.

Think of amps as the flow of the water from the tap when it is opened.

Think of ohms as the restriction of the flow like when the tap is only half open...

Answer 3

1. The ampere is a unit measuring the volume of electric current.
The full definition is long, specific and, quite frankly, boring.

2. The volt is a unit measuring the potential difference across a conductor.
The potential difference across a conductor is 1 volt when the I ampere of current in it dissipates 1 watt(see below) of power.

3. An ohm is a measure of electrical resistance such that 1 ampere through it produces 1 volt.

And, for completeness:

A watt is a unit of power equal to 1 joule(see below!) per second.

A joule is a unit of work, energy or heat. 1 joule is the work done when a force of 1 newton(see below!) moves its point of application 1 metre in the direction of the forces.

And a newton is a unit of force - that force required to impart to a mass of 1 kg, an acceleration of 1m/sec/\2

Probably both too much and too little information. I absorbed it in A level physics some 50 years ago so this answer has been an interesting revision exercise.

Good luck in your studies.

PS - these are all linked units within the S.I. system.

SI - Systeme International (d'Unities)
A comprehensive system of coherent metric units initially proposed for acceptance in 1960

Answer 4

The scientific definition of these units is rather difficult to understand so hope this helps.

Voltage is the potential difference between two points. Could be likened to an energy difference. If you stand on a high platform you could be said to have more energy than somebody on the ground because if you jump off you will accelerate rapidly (until you hit the ground).

Amperes or amps is a measure of electric current, it's a bit like pressure of electricity. Any given conductor (wire) can only allow a certain amount of electricity to pass through it, too much and the wire starts to heat up and eventually melts. This won't happen with voltage increases until you reach high enough voltages for the surrounding air to become ionised and a spark to be produced.

An Ohm is a measure of resistance. .Imagine you are crossing a bridge with a large number of other people. Provided there is no obstruction you can all get across OK but if somebody decides to put a roadblock in the way everybody piles up behind it because of its resistance to free movement.

Answer 5

These are electrical terms.
In an electric circuit, the resistance is denoted by R and is measured in ohms.
A voltage, V, measured in volts sends a cuurent. I, through the circuit.
I = V / R
Example
Calculate the current that passes through a 12 ohm resistor when voltage is 24 volts.
I = 24 / 12 amps
I = 2 amps

Answer 6

Volts (EMF ..Electro-motive Force), can be likened to the water pressure differential (PD) which causes flow of water in a pipeline.
Volts provide the 'push' (pressure differenec (PD), that moves electrons in a conductor.

In the water pipe, a partly closed tap (faucet) will cause resistance to the flow and therefore a pressure drop in the flow of water.
Resistance in an electrical circuit is measured in 'Ohms' and, the greater the resistance, the greater the voltage drop across it.

Flow of water in a pipeline is measured in litres or gallons per second or minute or thousands of gallons or cubic metres per day.
Flow of electricity is measured in Amps or Milliamps ...etc.

The Voltage applied multiplied by the Amps produced will give the Watts (Power usage), of the system.

Answer 7

In an electrical circuit, the amount of current flowing is measured in amps.

The volts is the unit of electric potential difference between two points in an electrical circuit.

Resistance offered by a device to electric current is measured in ohms.

If a potential difference of 1 volt is applied across a resistance of 1 ohm then a current of 1 amp. will flow in the circuit.

Voltage (potential diff. between two ponis)=current * resistance.

Answer 8

Amps is the unit for measuring electrical current,voltage is the unit for measuring the potential diffrence due to which the electrical current flows.Resistance is the ratio of Voltage and Current,physically it is the resistance offered by a material to the flow of current when there is a potential diffrence applied accross it.
George Ohm found out the relationship between them as: R=V/I where V is the voltage ,I is the Current and R the resistance

Answer 9

amps is the unit for an electric current. It measures how many charges are deliverer in a unit of time

Volts is the unit of voltage. I still don't understand the concept of voltage but it's something that move electrons.

ohm is the unit of resistance. It measure how much force is resisted when a current passes through

Answer 10

The ampere is the unit of electrical current flow. The volt is the unit of electrical pressure. The ohm is the ratio of these. A standard dry cell has a voltage of 1.5 volts when new, and can supply from a fraction of an ampere up to about one ampere, depending on its size. An automobile starter battery has a voltage of 12 volts, and can supply a hundred amperes or more to run the starter motor.

Answer 11

you be responsive to how a easy bulb works? there's a filament that resists the pass of electric energy and gets particularly warm and lights up. properly audio gadget face up to the pass of electric energy too as a manner to artwork. there is not any "better," they only ought to be properly suited with your amp. tremendously much all automobile subs was once 4 ohms and tremendously much all amps used to correctly suited. Now there are twin voice coil subs and 2 ohm subs, and so on. in case you have subs in ideas, you will ought to discover a properly suited amp. in case you have an amp in ideas, you will ought to discover properly suited subs. in case you "bridge" an amp, it basically doubles the resistance on the amp (rather of four ohms, it may bypass to 2 - ohms bypass opposite - a decrease huge form equals greater resistance). in case you connect 2 subs in parallel (+ to + and - to -), this is going to double the resistance on the amp. in case you run 2 subs in sequence (+ to +, - to +, and - to -), this is going to a million/2 the resistance on the amp.