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When are electromagnets used to increase or decrease the voltage of electric currents?
Wiki User
∙ 14y ago
Electromagnets are never used to increase or decrease the voltage in a circuit. These magnets in conjunction with a rotating device (an armature) can create a voltage but the do not have any effect on a voltage.
Wiki User
∙ 14y ago
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How does the increase or decrease of potential difference affect the flow of the electric current?
Increase or decrease in potential results in the change in direction of the flow of electric current.
Does the magnetic field increase or decrease if the current is decreased?
An increase in an electrical current will cause magnetism to increase but a decrease in an electrical current will cause magnetism to decrease.
The Cape of Good Hope increase or decrease after 1869 Justify your answer?
decrease?
Did the population of north America increase or decrease from 1830-1840?
increase
What is Graph the relationship between cost and number?
They are inverly related ,number increase cost decrease as wellas cost increase may qulity & number decrease
Can electromagnets be made strong?
yes. to make it stronger, increase the electric flow.
How does the increase or decrease of potential difference affect the flow of the electric current?
Increase or decrease in potential results in the change in direction of the flow of electric current.
What are some ways to increase the magnetic field strength?
Increase the size of the magnet. Increase the current passing through the wires (electromagnets) Increase the number of coils of the wire (electromagnets)
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.
On the application of electric field to a conductor do the velocity of free electrons increase or decrease?
either is constant
The instrument used to increase or decrease the passage of electric current through a circuit is called?
try RHEOSTAT
Is there any way to increase or decrease the energy possessed by electrons?
You can increase or decrease the kinetic energy of electrons by accelerating or decelerating them, which you can do with an electric field or by collisions. You can increase or decrease the electrical potential energy of electrons by causing them to move to positions with lower or higher voltage. To a very small extent you can increase or decrease the gravitational potential energy of electrons by causing them to move up or down in a gravitational field.
How do you show the magnetic field produced by a coil?
Magnetic fields are produced by electric currents , which can be macroscopic currents in wires and that The easiest way would be to increase the current flow. After that use thicker wire for the coil
Does heat increase or decrease thermal energy?
increase
Does x increase or decrease making the y increase or decrease?
no. :)
Does increase of inventory increase or decrease cash flow?
When adjusting your cash flow statement, you increase (add) a decrease of inventory and decrease (subtract) an increase of inventory
Do machines increase or decrease work?
they increase productivity but decrease jobs
