Because power is needed to accelerate the rotor and thus increase its kinetic energy.
When current is suddenly passed through a conductor in a magnetic field, it experiences a force due to the interaction between the magnetic field and the current. This force causes the conductor to move, resulting in electromagnetic induction and the generation of an electric current in the conductor.
Generators produce electricity through electromagnetic induction. When a coil of wire is rotated within a magnetic field, it generates an electric current. This current can then be harnessed and used as electricity.
There are two possible meanings I can think of:Firstly, and induction system can mean something like an orientation program, for example where a new employee is inducted into the workings and procedures of a company.The second can refer to the induction of heat or electric current into a circuit through a strong magnetic field. For example: an induction stove, where a magnet in the surface of the stove causes the (ferrous) metal pot above it to heat up, an induction coil which induces high voltage, an induction motor.Other common place items that use induction in their design include:Some pacemaker designs use induction to recharge the battery that sits within the body cavity.Some electric tooth brush systems use iindcution technology to recharge a battery within the sealed handle of the toothbrush.Induction stoves/ cookers.
a decrease in the blood concentration of calcium
Voltage causes current to flow in an electric circuit.
When a magnetic field around a conductor is changed, it induces an electromotive force (EMF) in the conductor. This EMF causes a current to flow in the circuit, known as electromagnetic induction. The current will only flow when the magnetic field is changing, as stated by Faraday's law of electromagnetic induction.
When electric current travels through a conductor, there is always resistance. This resistance causes some of the energy of the current to express as heat. Additionally, the movement of the current causes a magnetic field to form around the current in a clockwise direction. This principle is what allows coil heaters and induction motors to operate.
In the electromagnetic induction animation, the movement of electrons is caused by a changing magnetic field passing through a conductor. This changing magnetic field induces a voltage in the conductor, which in turn creates an electric current that causes the electrons to move.
Current passing through a resistor, et al, causes heat. The heat causes the resistance of said resistor to decrease, which causes current to increase, and the cycle just keeps going until the circuit burns out.
electromagnetic induction
Alternating current is caused by a changing magnetic field, which induces a current in a conductor according to Faraday's law of electromagnetic induction. This current changes direction periodically, resulting in a fluctuating voltage waveform.
Resistors in a circuit reduce the flow of current by impeding the movement of electrons. This causes a decrease in the overall current flowing through the circuit.
A resistor restricts the flow of current in an electrical circuit by resisting the flow of electrons. This causes a decrease in the amount of current that can pass through the circuit.
The moon accelerates because it is always changing direction. :)
uneven induction hardening pattern
lycopene
Current can be induced in a conductor by changing the magnetic field around it. This change in magnetic field creates an electromotive force (EMF) within the conductor, which in turn causes the flow of current. This phenomenon is known as electromagnetic induction and is the basis for the operation of generators and transformers.