0
The Drift Speed is less than the average speed of the electron between two collisions. Electrons move relatively slowly along a wire but very quickly between collisions. The electric field (EMF) that causes the motion moves at the speed of light.
Wiki User
∙ 15y ago
Add your answer:
Earn +20 pts
What is the function of field winding in DC generator?
The motor needs the current and magnetic flux to create motion The magnetic field is created by field winding where as armature carries the current resulting into the rotation of armature
The magnitude of the voltage induced in a conductor moving through a stationary magnetic field depends on the what?
The magnitude of the voltage induced in a conductor moving through a stationary magnetic field depends on the length and the speed of the conductor.
Relation between voltage speed and current in alternating current motor?
voltage is inversly proportional to speed speed and current are directly proportional to each other but voltage and current are directly proportional to each other..
How fan regulator works?
A fan regulator is a crucial component that serves to increase or decrease the speed of your fan according to your needs. To understand how a regulator works, you must know something about resistances. Any electrical conductor allows current to pass through it. The conductor however, offers a certain amount of resistance to the passage of current. The resistance depends upon the material of the conductor. The regulator has spools of wire with different amounts of resistances. When you set the knob at a particular position, you include a certain resistance in series with the fan. A series connection implies the resistance is in line with the fan. This reduces the voltage drop across the fan and its speed to your desired level. The greater the resistance, higher is the voltage drop across it and that lowers the speed of the fan.
Why is motor current draw lower at full speed?
Because full speed is unloaded. As you load the motor, speed decreases, and slip increases, with an accompanying increase in current.
Do electrons in a DC circuit travel at the speed of light?
The electrons themselves do not move at the speed of light. Electrons in a DC circuit move because of the application of an electric field. Like molecules in a gas, the charge carriers, electrons, undergo a Brownian-like motion through the conductor. The average drift velocity can be calculated by I=nAvQ, where I is current, n is the number of charged particles, A is the cross section area of the conductor, v is drift velocity, and Q is the charge on each particle.
How does electricity flows through a conductor?
Electric current - a movement or flow of electrically charged particles, typically measured in amperes.In a conductor, current flow is via a drift of free electrons in the metal. the actual drift rate may be slow, the electric field that drives them itself propagates at close to the speed of light, enabling electrical signals to pass rapidly along wires.See related link belowElectricity can flow through a conductor because it allows the electrons to move freely through the object. With an insulator, electrons cannot move.
How does current flow in a conductor?
A conductor has a large number of free electrons which under sufficient voltage(electrical push) will flow in unison speed and direction. Thus creating a electrical current.
How does electricity flow through conductors?
Electric current - a movement or flow of electrically charged particles, typically measured in amperes.In a conductor, current flow is via a drift of free electrons in the metal. the actual drift rate may be slow, the electric field that drives them itself propagates at close to the speed of light, enabling electrical signals to pass rapidly along wires.See related link belowElectricity can flow through a conductor because it allows the electrons to move freely through the object. With an insulator, electrons cannot move.
Who discovered that the electric current flows at the speed of light?
A german physicist named Gustav Robert Kirchhoff was the first scientist to show that eletric current flows at the speed of light through a conductor.
How does electrical current flow?
In a conducting wire, an electrical current will flow at about 2/3 the speed of light in a vacuum, or 200,000 km/sec. Note that the speed of the individual electrons is quite a bit less, and the average speed of the electrons is less than a millimeter per second. It is the CURRENT that advances at 2/3 the speed of light, not the electrons.AnswerThe free electrons in a metal conductor move in random directions at a very high speed -a little less than the speed of light. This is the case whether or not a potential difference (or an electric field) is applied across the ends of that conductor.However, when a potential difference is applied, these randomly-moving electrons are slightly biased towards the positive end of the conductor. So if a randomly moving but unbiased electron would normally end up at, say, point A, within the conductor then, under an electric field, it would end up at point B instead -where point B is typically less than the diameter of an atom away from point A. So individual electrons move along a conductor at speeds in the order of millimetres per hour.As current is defined as a drift of electric charge (free electrons, in the case of metal conductors), this means that the velocity of this drift and, therefore, an electric current is very, v-e-r-y, slow! However, the effect of that current is felt immediately along the whole length of that conductor in much the same way that a number of railway wagons respond, practically instantaneously, to a small movement of just one of those wagons.Electric current is so slow that, in practical terms, it's unlikely that an individual electron will complete its journey through the filament of a flashlight within the lifetime of its battery!
Does the current and light travels at same speed?
Actually it is an interesting fact to be known thoroughly Current through metal is due to the drift flow of electrons. Actually that drift velocity is just 0.1 mm /s Very very slow. But how does the bulb glow so immediately as switch on the circuit? Here though electrons get drifted at such a low speed, that disturbance alone has been passed on from one region to the other at high speed. Hence we sense as if the current has passed at the speed of light. But acutally we cannot say that current flows at such a high speed.
What is the speed of electricity?
The speed of an electric current is determined according to v = I/nAQ (average speed equals current divided by the number of charged particles moving, the cross-sectional area of the conductor and the charge of the particles). This basically means that a normal current e.g. the current in a house's wiring travels at about walking pace.
Does electricity travel closer to the speed of sound or light?
Electrons, that make up an Electric Current move at the Speed of Light.Further CommentAlthough electrons move rapidly, their movement is quite chaotic. But the actual drift of electrons along a conductor -i.e. current- is V-E-R-Y slow. So slow, in fact, that an individual electron, flowing through a flashlight bulb's filament, is unlikely to travel the length of that filament during the lifetime of its battery,
When an electric current flows through a long conductor how does each free electron moves?
The individual electrons will move back and forth, as they do when there is no current. You would have to do very careful statistics to notice that there are slightly more electrons moving in one direction than in the other: the drift velocity (average velocity due to current) of the electrons is typically a fraction of a millimeter per second.
Why does conductor heat up when current is passed through after a long time?
Heating up means increase in average speed of atoms oscillation. When current passes through the conductor electrons collide (impact) with atoms and transfer a part of their energy to them increasing their average speed. Error: "average" instead of "average"
The current in electrical wiring has a frequency of 60 Hz. What is its speed?
The speed of a current is about 2/3 the speed of light in a vacuum - in other words, the current travels at a speed of about 200,000 km/sec. This is independent of the frequency.AnswerAlthough the effect of an electric current is felt, more-or-less instantaneously along the length of a conductor, the individual charge carriers move very slowly in the direction of that current. In fact an individual electron is unlikely to travel the length of a flashlight's filament during the lifetime of its battery.
