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Which device measures current by using the deflections of a coil of wire placed in a permanent magnetic field?
A galvanometer measures current by using the deflections of a coil of wire placed in a permanent magnetic field.
Is electromagnet a permanent magnet?
No, an electromagnet is not a permanent magnet. It is a magnet that produces a magnetic field when an electric current is passed through it, and the magnetic field disappears when the current is turned off.
How are electromagnets and permanent magnets different?
Electromagnets are temporary magnets that produce a magnetic field when an electric current flows through them, while permanent magnets retain their magnetism without the need for an external electric current. Electromagnets allow for the control of the magnetic field strength by changing the current, while permanent magnets have a fixed magnetic strength.
What are the differences between electromagnets and permanent magnets, and how do electromagnets differ from permanent magnets?
Electromagnets and permanent magnets differ in how they are created and their magnetic properties. Electromagnets are temporary magnets created by passing an electric current through a coil of wire, while permanent magnets are naturally occurring magnets with a fixed magnetic field. Electromagnets can be turned on and off by controlling the electric current, while permanent magnets always have a magnetic field.
What causes a magnetic field with no current?
A permanent magnet can create a magnetic field with no current. This is due to the alignment of the magnetic domains within the material, which results in a net magnetic field. The magnetic field produced can attract or repel other magnets or magnetic materials in its vicinity.
Which device measures current by using the deflections of a coil of wire placed in a permanent magnetic field?
A galvanometer measures current by using the deflections of a coil of wire placed in a permanent magnetic field.
Is electromagnet a permanent magnet?
No, an electromagnet is not a permanent magnet. It is a magnet that produces a magnetic field when an electric current is passed through it, and the magnetic field disappears when the current is turned off.
How are electromagnets and permanent magnets different?
Electromagnets are temporary magnets that produce a magnetic field when an electric current flows through them, while permanent magnets retain their magnetism without the need for an external electric current. Electromagnets allow for the control of the magnetic field strength by changing the current, while permanent magnets have a fixed magnetic strength.
What is a fluxmeter?
meter that measures magnetic flux by the current it generates in a coil
Is the magnet in a compass a permanent magnetic or an electromagnet?
PermanentThere is no source of current in a compass, therefore the magnet is a permanent magnet.
Why steel becomes a permanent magnet after electric current is passed through it?
When an electric current passes through steel, it creates a magnetic field within the steel. This magnetic field aligns the magnetic domains in the steel, causing it to become a permanent magnet. The alignment of the magnetic domains allows the steel to retain its magnetism even after the electric current is removed.
What are the differences between electromagnets and permanent magnets, and how do electromagnets differ from permanent magnets?
Electromagnets and permanent magnets differ in how they are created and their magnetic properties. Electromagnets are temporary magnets created by passing an electric current through a coil of wire, while permanent magnets are naturally occurring magnets with a fixed magnetic field. Electromagnets can be turned on and off by controlling the electric current, while permanent magnets always have a magnetic field.
What condition will sinusoidal voltage be generated in a coil of wire that rotates in a magnetic field?
a generator or alternator,if the magnetic is permanent the current produced from the coil will be alternating current ac.
What causes a magnetic field with no current?
A permanent magnet can create a magnetic field with no current. This is due to the alignment of the magnetic domains within the material, which results in a net magnetic field. The magnetic field produced can attract or repel other magnets or magnetic materials in its vicinity.
Compare an electromagnet and a permanent magnet?
An electromagnet is a temporary magnet that produces a magnetic field when an electric current passes through it, whereas a permanent magnet retains its magnetic properties without needing an external electric current. Electromagnets allow for control of the magnetic field by adjusting the current, while the strength of a permanent magnet is fixed.
What is the different electromagnets and permanent magnet?
Electromagnets are non permanent magnets. They got magnetic field because of applied electric field. They lost their magnetic field which was around that, when the applied electric field is stopped. permanent magnets have magnetic property always with it. Permanent magnetic property loses when we heat the material. It cannot be regained once again. But electromagnets are capable of regaining its magnetic properties.
What is true about permanent magnets?
Permanent magnets have their own magnetic field that does not require external electrical current to maintain. They can attract or repel other magnetic materials without losing their magnetic properties. Common materials used for permanent magnets include iron, nickel, and cobalt.
