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What else can I help you with?
Does adding electric currents to something that is already magnetized increase or decrease the power of the magnet?
By 'adding electric currents', you are presumably talking about passing a d.c. current through a coil wound around a magnet?First of all, you cannot increase the flux density of a magnet beyond saturation, regardless of the current or number of turns that make up the coil. Whether on not you increase or reduce the flux density depends on the polarity of the coil compared with the polarity of the magnet; if they are opposite then, yes, you can demagnetise the magnet and, in fact, remagnetise it in the opposite direction.
Why voltage induced when moving coil cuts flux?
The magnetic flux passing the coil changes by its rotation thus induced emf is produced and induced current flows
If you increase the number of turns in the coil and move a magnet at the same speed will the speed increase or decrease?
no the strength of the magnetic field does not decrease because of the number of coils increases.
Why is a motor is a reverse function of generator?
from Faraday's laws its clear that when ever there is change in flux, an emf is produced. in a dc motor there are permanent magnets that produce a magnetic flux. If the shaft of the motor is rotated, which in tern rotates the coil that is placed in the magnetic field. Thus, changing the flux that cuts the coil. since there is change in flux an emf is induced.thus, a dc motor can be used as a generator.
How can the leakage flux be minimized in a dc motor?
An opposing magnetic field around the motor coil.
What is the flux linkage formula used to calculate the total magnetic flux passing through a coil of wire?
The flux linkage formula used to calculate the total magnetic flux passing through a coil of wire is given by the equation N, where represents the magnetic flux, N is the number of turns in the coil, and is the magnetic flux per turn.
What are the three ways in which the strength of induced emf in electric generator can be increased?
Increasing the number of turns in the coil to enhance the magnetic flux linkage. Using stronger magnets or increasing the speed of rotation to boost the magnetic field strength. Utilizing a core with higher magnetic permeability to enhance the flux density and, consequently, the induced emf.
How may a coil carrying current increase magnetic flux density?
Increasing the current flowing through the coil will increase the magnetic field produced by the coil, which in turn will increase the magnetic flux density inside the coil. This relationship is described by Ampere's law which states that the magnetic field is directly proportional to the current flowing through the coil.
Difference between mutual flux and leakage flux?
when a current flow through the coil then flux produced around the coil . if the flux linked same produced coil only then the flux is said to be leakage flux. flux produced by one coil ,but linked with another coil then the flu is said to be mutual flux.
Difference between leakage flux and mutual flux?
when a current flow through the coil then flux produced around the coil . if the flux linked same produced coil only then the flux is said to be leakage flux. flux produced by one coil ,but linked with another coil then the flu is said to be mutual flux.
Does adding electric currents to something that is already magnetized increase or decrease the power of the magnet?
By 'adding electric currents', you are presumably talking about passing a d.c. current through a coil wound around a magnet?First of all, you cannot increase the flux density of a magnet beyond saturation, regardless of the current or number of turns that make up the coil. Whether on not you increase or reduce the flux density depends on the polarity of the coil compared with the polarity of the magnet; if they are opposite then, yes, you can demagnetise the magnet and, in fact, remagnetise it in the opposite direction.
Why a double coil transformer does not work on a pure DC voltage source?
According to Faraday's Law only if there is change in flux linkage of a conductor then current is induced between mutual inductors. Now DC will induce a constant a constant flux in the transformer core, consequently in the secondary coil. So constant flux cannot induce a current in the secondary. SUBHRA JYOTI SAHA
Why voltage induced when moving coil cuts flux?
The magnetic flux passing the coil changes by its rotation thus induced emf is produced and induced current flows
How can you increase strength of solenoid?
You can increase the strength of a solenoid by increasing the number of turns in the coil, increasing the current flowing through the coil, using a core material with higher magnetic permeability, and optimizing the design for maximum magnetic flux density.
How does electricity generate magnetism?
A flow of electric current creates a surrounding swath of magnetic flux. This flux will mingle with and surround the current flow. If the current is bent by say winding a wire in the form of a coil, the flux will shape itself around the coil. The strength of the flux will vary with the current. Reversing the current reverses the flux direction.
How do you make a super power full electromagnet?
-- Use greater length of wire. -- Wind it into more turns around the coil. -- Decrease the diameter of the coil. -- Increase the electrical current through the coil. Each of these actions will increase the strength of the electromagnet.
How is an electormotive force induced in a coil?
An electromotive force (emf) is induced in a coil when there is a change in magnetic flux passing through the coil. This change in magnetic flux can be caused by either moving a magnet near the coil or by changing the current flowing through a nearby coil. According to Faraday's Law of electromagnetic induction, the emf induced in the coil is proportional to the rate of change of magnetic flux.
