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What is the opposition to the movemnet of charges flowing through a material?
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A material that prevents electrons from flowing freely is called what?
an insulator
Why does energy increase when voltage increases?
If we increase the voltage by adding extra cells or batteries we give the electrical charges more energy and so, the current flowing around the circuit increases.
What tranfers heat through flowing material?
If the material itself is moving than it is called convection.Heat flux is a quantitative, vectorial representation of the heat flow through a surface.
What opposing force must be overcome by charges flowing in electric current?
resistance It depends on what you mean by overcome. Resistance is usually what most people will say when what they actually mean is impedance. The difference between the two depends on the situation. For a steady flowing current (read flow of charges) that is not changing with time, then the two are the same. For a changing current then the two are distinctly different from each other as resistance is only a part of impedance, reactance making up the second part. Reactance can be classified into two types...capacitive and inductive reactance. At a microscopic scale, like if you could shrink yourself down and watch an individual "charge" then the answer becomes more complicated. In this case the answer is...NOTHING! The charge has no force to overcome if it was isolated on it's own in a vacuum in no electromagnetic field. That's not a practical situation and there is usually some type of material medium that the charges are bound to...like a copper wire. That's not always the case, but I'll assume that's the question your asking since it's a very common situation. In the copper wire case, the answer is collisions and electromagnetic fields. In the direct current case, the charges are colliding with each other and the copper atomic lattice. At normal temperatures the lattice is vibrating violently and traveling charges approach the lattice sites closely enough to be influenced by their localized electromagnetic fields. This causes the charges to change velocity and direction. They also can collide with each other since there are a huge number of them even in the small pieces of copper. So here you hit back against a basic definition of electric charge, that which is influenced by an electromagnetic field and you find the answer in that definition. The opposing force that must be overcome by charges flowing in electric currents is the force of electromagnetic fields.
What is the difference between bidirectional energy meter and unidirectional energy meter?
A bidirectional meter will meter power flowing in, and power flowing out separately. Unidirectional meters usually measure power (so flowing in will be added to power flowing out). If you're selling power and using power, you need to know how much you are producing (power flowing out), and how much power you are consuming (power flowing in) for correct billing.
What is the opposition to the movement of charges flowing through a material?
Resistance
The opposition to the movement of charges flowing through a material is called what?
RESISTANCE.
What is the opposition to the movement of charge flowing through a material?
Resistance
What is flowing material made from?
hanoi
When charges continually shift from flowing in one direction to flowing in the reverse direction?
. . . then that would be alternating current, or simply, 'AC'.
When charges continually shift from flowing in one direction to flowing in the reverse direction there is a what current?
Alternating current would fit this description.
What does a current flowing through a material meet with?
Resistance
What is fluid rock?
lava= material flowing from a volcano
Movement of heat energy by flowing material?
Convection
When charges continually shift from flowing in one direction to flowing in the reverse direction what current is there?
It is called an alternating current
When charges continually shift from one direction to flowing in the other direction what current?
Polarity
A material that prevents electrons from flowing freely is called what?
an insulator
