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What happens when you decrease the current in an electromagnet?
Wiki User
∙ 12y ago
When you decrease the current in an electromagnet, the magnetic field decreases.
Wiki User
∙ 12y ago
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What type of magnet has an iron core and electric current?
an electromagnet
How are electromagnets used in toasters?
The latch release in the toaster is held shut by an electromagnet. In modern toasters this is achieved by driving the electromagnet with a timing circuit . The timing circuit stays live until a capacitor reaches maximum charge, and then as the current dies, the magnetic field dies and the electromagnet releases the toast carriage, which is returned by a spring to eject the toast. In older toasters, the electromagnet current was released by the motion of a bimetallic strip breaking the current.
What happens to the rotor speed and rotor current when the mechanical load on an induction motor increase?
whenever the load increases,the current drawn by the motor to do or to fulfill the required energy to the load. so the current will increase generally.Increase in load will cause the full utilization of motor,so speed of rotor will decrease.
What Consists of an electromagnet that's used to open and close contacts to switch current?
That'd be a relay.
Does a resistor only decrease current in a circuit?
A resistor does not only decrease current in a circuit it can also reduce tension(voltage) if connected in series.
What happens when the electric current is reversed on am electromagnet?
When an electric current is reversed in an electromagnet, the magnetic field also reverses.
What happens to the electromagnet when the circuit is closed?
An electromagnet if formed by pushing current through a coil. If the circuit is truly open, current will cease to flow, thus no electromagnet.
What happens if you increase the current in an electomagnet?
As current increases, the electromagnet strength will increase.
What happens when you reverse the current in a current-carrying magnetic field?
The polarity of the electromagnet reverses.
What happens as you increasse and decrease the number of loops in an electromagnet?
With increase loops you create a larger charge, with decreased you will produce less current thus a smaller charge
What happens when you reverse the current in an electromagnet?
The magnetic field reverses direction.
What happens when a current stops flowing through the wire of an electromagnet?
magnetic fieldOnly
What happens when the base current of a transistor is decrease?
in a properly biased transistor, collector and emitter current also decrease
In an electromagnet as the electric current changes what happens to the magnetic field?
the magnetic field would constantly change, that's why the AC current is converted to DC current
What decreases the strength of an electromagnet?
- A relative decrease in electric current in the electromagnet, since Ampere's law states that electric current produces a magnetic field relative to the intensity of the current produced. - Decreasing the number of windings around the coil, or spacing them more widely. - Raising the temperature of the magnet, which increases the resistance.
The what of an electromagnet is determined by the direction of current flow?
The electromagnet (polarity) is determined by the direction of current.
What is a magnet made by electric current?
An electromagnet.
