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Electric charges interact with changing magnetic fields. All magnetic field changes can be thought of as the magnetic field moving. If the magnetic field strength is increasing then it is the same as a magnet being brought nearer while a decreasing magnetic field is the same as if a magnet is being pulled away.
The force a charge experiences is the result of several factors. The direction of the force depends on the polarity of the charge, whether it is positive or negative, the direction of the magnetic field and the direction of relative motion between the charge and magnetic field. The magnitude of the force, its strength, depends upon the amount of charge, the strength of the magnetic field and the speed of the relative motion between them.
So you can make charges inside a piece of wire move by waving a magnet near the wire. If the wire makes a circuit, then you get electric current flowing through that circuit. A generator is a device which uses the interaction between charges and changing magnetic fields to create electric current. Generators require a source of mechanical energy to run. Portable generators typically use gasoline while generators used by the electric power company can be driven by water, wind, coal, natural gas or the heat from nuclear fission. Coal is the most common source of energy for electricity in the United States.
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How does electromagnetic induction produce induced current?
Before you can understand how electrical energy is supplied by your electric company, you need to know how it is produced. A magnet and a conductor, such as a wire, can be used to induce a current in the conductor. The key is motion. An electric current is induced in a conductor when the conductor moves through a magnetic field. Generating an electric current from the motion of a conductor through a magnetic field is called electromagnetic induction. Current that is generated in this way is called induced current. To induce a current in a conductor, either the conductor can move through the magnetic field or the magnet itself can move.
What is the function of inductance?
Inductance is a property of electrical circuits that quantifies the ability of a conductor to store energy in a magnetic field when an electric current flows through it. It is measured in henries (H) and plays a crucial role in the behavior of inductors, transformers, and other electromagnetic devices. Inductance opposes changes in current, enabling applications such as filtering, energy storage, and signal modulation in various electronic circuits.
What is needed for electromagnetic induction?
An electric current is produced by the change in Magnetic flux over timeRead more: How_do_electromagnets_work
Which part of a circuit is a current?
Current is the flow of electric charge or the rate of the flow of an electric charge through a conductor.
Created around a conductor when electrons flow through that conductor?
Then an 'electrical current' is said to be present in the conductor.
How is an electric current produced and what factors influence its generation?
An electric current is produced when electrons flow through a conductor, such as a wire. Factors that influence the generation of an electric current include the voltage applied, the resistance of the conductor, and the presence of a closed circuit.
What is the basic unit of inductance?
The basic unit of inductance is the henry (H). It is defined as the inductance of a circuit in which a change in current of one ampere per second induces an electromotive force of one volt. Inductance measures the ability of a conductor to store energy in a magnetic field when an electric current flows through it.
When an electric charge moves through a conductor there is an electric in the conductor?
When an electric charge moves through a conductor, an electric current is generated in the conductor. The flow of electrons creates a flow of current in the conductor, which is the movement of electric charge through the material.
What will happen to the heat produced in a conductor if the electric current in the conductor is doubled keeping the other quantities the same?
The losses will be 4 times.
What is produced whenever there is a flow of electrons in a wire?
Electric current is the movement of electrons through a conductor.
When a voltage is induced into a conductor (or coil) as a result of a change in current through the conductor the phenomenon is called?
self inductance
How do magnets magnetic fields electric currents and metals connect?
Magnets produce magnetic fields which can interact with electric currents to generate forces or induce currents in the conductive materials like metals. When an electric current flows through a metal conductor, a magnetic field is produced around it. This interaction forms the basis of electromagnetism and is used in various applications such as electric motors and generators.
How does electromagnetic induction produce induced current?
Before you can understand how electrical energy is supplied by your electric company, you need to know how it is produced. A magnet and a conductor, such as a wire, can be used to induce a current in the conductor. The key is motion. An electric current is induced in a conductor when the conductor moves through a magnetic field. Generating an electric current from the motion of a conductor through a magnetic field is called electromagnetic induction. Current that is generated in this way is called induced current. To induce a current in a conductor, either the conductor can move through the magnetic field or the magnet itself can move.
Why inductance of a coaxial cable is expected to increase when the radius of the outer conductor is increased?
Because there is more room in the cable for the magnetic field to form. The magnetic flux density is set by the current in the cable, and with a bigger space that flux density produces more actual flux. The inductance is the flux divided by the current, so a wider cable has more inductance. But if the inner conductor is also increased in size by the same ratio, the effect is negated and the inductance is the same as before.
Can Magnetism cause an electric current to flow in a conductor?
Yes, a MOVING magnetic field will cause electric current to flow in a conductor. Conversely an electric current flowing in a conductor will cause a magnetic field.
What is the word for the flow of electric charge through a conductor?
The flow of electric charge through a conductor is called electric current.
How was current produce or induced?
Current can be induced in a conductor through electromagnetic induction, where a changing magnetic field causes a flow of electric current. This can be achieved by moving a magnet near a conductor or by varying the current in one nearby. Alternatively, current can be produced by a voltage source such as a battery or generator that creates a potential difference to drive the flow of electrons.
