When the current is increased in an electromagnet what happens to magnetic field?
What happens to the strength of magnetic force in an electromagnet when increasing the current through the coil.?
The strength is increased, this is how roller coasters operate.
When you decrease the current in an electromagnet, the magnetic field decreases.
a magnetic field only persists when their is an electric current going through the electromagnet
The magnetic field collapses.
The magnetic field reverses direction.
The polarity of the electromagnet reverses.
the magnetic field would constantly change, that's why the AC current is converted to DC current
The magnetic field of electromagnet is also reversed. If it was anticlockwise first, then it will change to clockwise and vice versa.
What happens when you add more coils to the wire in an electromagnet what else can you do to increase the magnetic field of an electromagnet?
More turns would increase the magnetic induction and as current flowing through increases then magnetic field induction too increases.
The magnetic field of electromagnet is also reversed. If it was anti-clockwise first, then it will change to clockwise and vice versa.
When we turn of the current in an electromagnet then electromagnet looses its magnetic property,provided the material used inside the current carrying solenoid is soft iron core. If, the material is steel then after the current is turned the magnetism propety still prevails and hence steel becomes a permanent magnet.
As current increases, the electromagnet strength will increase.
The poles of the electromagnet changes or magneticfield changes it direction.
The magnetic field in an electromagnet is created in the core of that device by the movement of current through the coil of wire around the core. For the electromagnet to be effective, the current must be moving in one direction only. If the current is reversed rapidly back and forth (like if AC is applied), the electromagnet won't work. If the DC current simply undergoes a polarity change, the electromagnet will still work pretty… Read More
When an electric pulse runs through an electromagnet, the current travels in the electromagnets coils, causing a magnetic field to be developed inside and outside of the coils. The amount of coils, tightness of the coils, and the space between the coils are all very important factors in the production of said EM field.
Electromagnets are magnets that are powered by electric currents. An electromagnet is usually more powerful than a permanent magnet that does not use electricity because the strength of an electromagnet can be increased by adding additional material, such as more wire or a bigger core, and the magnetic field can be concentrated using wire coils around the core. i hope this did help
What happens to the direction of the magnetic field about an electric current when the direction of the current is reversed?
The magnetic field would reverse.
If the current in the wire increases, the magnetic field also increases.
A coil of wire or a coil in the shape of a cylinder is a typical shape for an electromagnet. The strength of the magnetic field of an electromagnet can be increased significantly if the coil is wrapped around an iron core. This does not happen with nonmagnetic materials such as wood or aluminum or rubber. The enhancement of the electromagnet is caused by the magnetic properties of iron. The atoms of iron have magnetic… Read More
What happens with the energy associated to the magnetic field of a coil with electric current if the electric current is turned off?
The magnetic field or energy associated with the magnetic field will no longer be generated if the current is turned off.
If resistance is increased, current decreases. Ohm's Law: current equals voltage divided by resistance.
Which happens to the magnetic field of a wire when you change the direction of the current in the wire The magnetic field?
The magnetic field collapses to zero, then builds up again for the current in the opposite direction.
The field reverses to increase the current.
Which happens to the magnetic field of a wire when you change the direction of the current in the wire?
The polarity of the magnetic field of a wire reverses when you change the direction of the current in the wire.
In that case, the magnetic field caused by the current would also be reversed. As for the wire itself, it would feel a force in the opposite direction, due to the interaction of the magnetic fields.
What happens to the magnetic field of a wire when you change the direction of the current of the wire?
In that case, the magnetic field will also be reverted.
electricity is induced
What happens to a magnetic field of a wire when you change the direction of the current in the wire?
Direction of the magnetic lines too would get changed
The flow of electrons meets an increased impedance to it's flow.
It produces a current.
What happens to the current in a closed circuit if the voltage is increased and the resistance remains the same?
If voltage is increased and resistance remains constant, then current increases. Ohm's Law: Current = Voltage divided by resistance
By Ohm's law - Current also increases. v=ir
If the resistance is doubled, the current will be diminished, if the resistance is halved, the current will be increased.
The current, if powered by the magnetic force, stops.
If the voltage is unchanged, then the current will reduce.
reduces on secondary
When current is increased during electrorefining of a metal, more electrons are sent into the solution. This causes more metal ions to be displaced at one time, increasing the rate that metals will separate out. So, the process just happens faster with more current.
you will cause an electric current to flow in the conductor
You generate a (stronger) magnetic field.
The energy of electromagnet will increase
In an electrical circuit, if total resistance in the circuit is increased, then the amount of current in the circuit decreased.
It isn't. However, the ratio of magnetomotive force to magnetic flux will tell you what the reluctance happens to be for that particular ratio, in exactly the same way that resistance isn't dependent on current, but the ratio of voltage to current will tell us what the resistance happens to be for that particular ratio.
Electric current will be induced in such a way that the flux of the magnetic field will be constant and thereby the induced current will create magnetic field in the same direction. This is what we call Lenz's law(law of conservation of energy).
The magnetic field created by the current in the wire deflects the compass needle.
With increase loops you create a larger charge, with decreased you will produce less current thus a smaller charge
the goat eats its foot!
What happens to the magnetic force when the angle between the magnetic field and the conductor is increased?
You mean the magnitude of magnetic Lorentz force. That force is given by the expression F = B i L sin@ Here @ is the angle between the magnetic field induction B and current carrying conductor with current direction as vector direction. So as @ increases the force also increases. Here we have to enjoy one beautiful aspect Current is not a vector though we mention the direction of flow Length of the conductor too… Read More
A magnetic field generates around the wire.
If the magnetic field is fluctuating, or the coil of wire and magnetic field are moving with respect to each other, then a current is induced in the coil of wire. If the two are stationary and the magnetic field is stable, then no current is induced in the coil. However, if there is a current in the coil, from another source, then the coil and the field will exhibit a relative force that will… Read More