Physics background of direct circuit.?

Question

Hey guys! Please, can you tell me
what is the physics behind direct circuit? Thanks.

Answer 1

In a direct circuit the traffic is always one way! The current is not necessarily constant.

Th

Answer 2

Do you mean "direct current?"
The basic physics is the premise that like charges repel and unlike charges attract.
With direct current, the current (electrons) flow from the negative source to the positive source - always in the same direction.
When an electron is extracted from one end of the conductor by the positive charge of the proton at the source of the voltage (battery, generator, etc), it is replaced by an adjacent electron and on down the line until another electron is added and the whole process continues for as long as the circuit is closed and their is a voltage source providing the differential.

Answer 3

When you say 'direct circuit', do you mean a 'direct current circuit'?

If so then the physics is summed up by Ohm's Law: I = V/R (or R = V/I or V = IR)

That is to say, the current I, flowing in a DC circuit is directly proportional to the applied voltage V, and inversely proportional to the resistance of the circuit, R.

R is expressed in ohms, I in amperes, V in volts.

Answer 4

i think u mean direct current not circuit.
direct current and alternating current are two ways in which electrical energy is transfered.
In DC the magnitude of voltage or current is contant and is not a function of time , for a specific resitance of the circuit elements. the sign of the voltage or current is either positive or negative. but not both.

in AC the magnitude of voltage or current is not constant and is continuously changing. the instantaneous value of current or voltage is a function of time and is either sinusoidal or cosinesoidal. The current or voltage will have certain frequency.
expressed as I(t)= Im sin [(2*pi*f) t]. f is the frequency and Im is the amplitude of current.
the value of voltage across an element is dependent on the impedance offred in AC circuit.
for better explaination with pictures and flash images. get on to some site of elements of electrical engg or basics or fundamentals of electrical engineering.

Answer 5

I think u mean DC- direct current. The big difference between DC and Ac- alternating current- is that DC is much weaker. It loses it's power after about a mile and AC can go for a long time. DC goes in a circle, in a circuit, but AC alternates- duh!- You want the physics behind it?? Well there are whole semisters focused on it, so be more specific if u want me to be.

Answer 6

In an acceptable international: definite, in a circuit wherein the battery is ineffective. interior the actual international: No, in spite of in case you in basic terms short the battery out. The battery will discharge till it is going to quite will become so vulnerable that it won't be able to generate sufficient electromotive tension to push any cutting-edge in any appreciate for the period of the resistance of the twine. in case you degree the version in ability around the terminals of the battery, you will nevertheless see some voltage, even though it will be so low that it is effectively skipped over.