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What strengthens a magnetic field made by a current carriyng wire?
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Does ac current produce magnetic field?
Yes; any current produces a magnetic field, an AC current will produce an alternating magnetic field. If the current (and therefore the magnetic field) changes quickly, you may not be able to detect it with a compass needle, for example.
What is the effect of putting a ferromagnetic material inside the coil of a solenoid?
It strengthens the magnetic field
Why do factors effect electromagnets?
The factors that affect the power of electromagnets are: the current (amperes), the amount of coils, and whether a soft iron core is present. These affect the electromagnet because the current is what provided the electrical energy which created the magnetic field, and so the greater the current, the stronger the magnetic field; the amount of coils is a measure of the resistance provided by the wire, and so the greater that is, the more electrical energy is being used to strengthen the magnetic field; finally, the soft iron core further strengthens the magnetic field as it can be temporarily magnified, so it will become a magnet itself.
How electric current have magnetic effect?
The magnetic force acts only on moving electric charges; A constant electric current produces an unchanging magnetic field and a changing electric current produces a changing magnetic field.
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 strengthens a magnetic field made by a current -carrying wire?
The number of coils present in it
Does ac current produce magnetic field?
Yes; any current produces a magnetic field, an AC current will produce an alternating magnetic field. If the current (and therefore the magnetic field) changes quickly, you may not be able to detect it with a compass needle, for example.
What is the effect of putting a ferromagnetic material inside the coil of a solenoid?
It strengthens the magnetic field
What happens to the magnetic field if the current in the wire increases?
If the current in the wire increases, the magnetic field also increases.
What is an electrical current that produces a magnetic field?
The deflection of a magnetic compass in the presence of an electric current, is evidence that an electric current produces a magnetic field.
What is produced around a wire that has a current?
Magnetic field.
What is evidence that an electrical current produces a magnetic field?
The deflection of a magnetic compass in the presence of an electric current, is evidence that an electric current produces a magnetic field.
What statements describes the result of reversing the current in a current-carrying in a magnetic field?
When the current is reverted, the magnetic field will also be reverted.
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.
How can you turn off a magnetic field by a current?
If the magnetic field is caused only by a current, you can turn the current off.If you have another magnetic field, for example due to a permanent magnet, with a current you can create a magnetic field that counters the first one. But that will only work in certain regions in space; you can't cancel such a magnetic field everywhere in space.
Why do factors effect electromagnets?
The factors that affect the power of electromagnets are: the current (amperes), the amount of coils, and whether a soft iron core is present. These affect the electromagnet because the current is what provided the electrical energy which created the magnetic field, and so the greater the current, the stronger the magnetic field; the amount of coils is a measure of the resistance provided by the wire, and so the greater that is, the more electrical energy is being used to strengthen the magnetic field; finally, the soft iron core further strengthens the magnetic field as it can be temporarily magnified, so it will become a magnet itself.
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.
