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When an electric current flows though a wire it creates a what around the wire?
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Why do you get an electric shock by touching a bare wire?
electric shock is a physiological symptom caused by an electric current flowing though the body. the current causes heating and, at higher levels, burns, and eventually death. The bare wire has an electric potential of some substantial voltage above ground. This potential causes a current to flow through your body to ground. if some other part of your body is not connected to ground, no current will flow. The current causes burning in your blood stream, your nervous system, and in you tissue. the current that flows through your body needs to be above about 10mA for you to perceive it as a shock. The voltage required to produce this current, by ohms law, depends upon the resistance between the point of contact and ground.
How does wave power work?
Basically a large generator is placed on top of the water with an electric generator inside of it that is moves up and down by the waves. This motion is used to drive the generator and creates electricity.That's just one way, though.
Why does a vacuum cleaner cord get warm?
The cord of a vacuum has a certain amount of resistance in it, even though it is made of copper. Forcing current through a resistor creates heat, and the cord is going to get warm after the machine is operated for a while.
What are materials that electrical current cannot pass though?
"insulators"
What process creates energy?
Technically, no process "creates" energy. Energy cannot be created, or destroyed for that matter. The total amount of energy in the Universe remains constant. It is possible to convert one type of energy to another, though.
If an electric current can travel though two paths which will it travel though?
Both
What Allows electric current to flow though them to devises and components?
Switches either allow the current to flow or turn it off
What does an electric current not flow easily though?
A poor conductor, like iron or steel.
What do you call the decomposition of a compound into simpler substances by passing an electric current though the compound?
electrolysis
What is a electrical curcuit?
An electric circuit is a path in which electrons from a voltage or current source flow. Electric current flows in a closed path called an electric circuit. Its so simple, though my friend from extraminds help me with proper answer.
Is the smart car fortwo an electric car?
The one released at current is not, it has a small engine and is very economical though, there is an electric one on trial though but as yet no news of when its likely to be released. The smart car UK information center. Actually the smart 4 2 gets 50 mpg and it is not electric. They are making cars that run on electricity. The smart is around $20,000.
What type of energy transfer is warm air rises wile cold air drops?
It's not an energy transfer. It creates a convection current though.
How can it be shown that a magnetic field exist around a wire though which a direct electric current is passing?
The magnetic field can easily be detected with a permanent magnet that is free to move - for example a compass (which has a magnetic needle), or a magnet hanging on a string.
Is electric potential difference a vector?
We generally think of electric current as a scalar quantity. When we think of 1/4th amp or 20 amps, we think of an amount (a scalar quantity) of current flow. On another plane, the electromagnetic forces at work in current generation are actually force vectors. In the traditional sense, electric current, which is the movement of electrons, is from negative to positive. This is not a vector, though. In the macro or "large" world, think of current as scalar.---------------------------------------------------------------------The beauty is that though current is not a vector definitely its direction of flow is used to make length as vector. I is not vector. dl is not vector but I dl will be considered as vector. So innovative and essential concept.Current density is a vector which appears in Maxwell's equations.
A complete path for electricity to flow?
currents can be thought of simply by flowing through a wire, though not always the case. It is convenient to think of current density which is the amount of current flowing through a cross sectional area, like water through the opening of a pipe, since electric current flows through many 3-dimensional objects.
Why does graphite conduct electric current though it is a non metal?
it doesnot depend on meta l or non metal it depends on valence electron ........
Why does graphite conduct electric current though it is a non-metals?
it doesnot depend on meta l or non metal it depends on valence electron ........
