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What is the use of an electric current to produce a relatively permanent removal of undesired hair?
Electric current is used in a process called electrolysis to permanently remove undesired hair by targeting and destroying the hair follicles. The current passes through a fine needle or probe inserted into the hair follicle, creating a chemical reaction that stops hair growth. Over time, repeated treatments can lead to permanent removal of the hair.
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The use of an electric current to produce a relatively permanent removal of undesired hair is known as?
electrolysis
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.
Do permanent magnets produce electric currents?
Permanent magnets do not produce electric currents on their own. However, when a permanent magnet moves near a closed loop of wire or coil, it can induce an electric current in the wire due to electromagnetic induction.
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.
Which type of magnet is used in electric motors?
Permanent magnets or electromagnets are typically used in electric motors. Permanent magnets provide a constant magnetic field, while electromagnets have a magnetic field that can be controlled by the flow of electric current.
The use of an electric current to produce a relatively permanent removal of undesired hair is known as?
electrolysis
What has the author J R Hendershot written?
J. R. Hendershot has written: 'Design of brushless permanent-magnet machines' -- subject(s): Permanent magnet motors, Brushless Electric motors, Design 'Design of brushless permanent-magnet motors' -- subject(s): Brushless Electric motors, Design, Direct current Electric motors, Electric motors, Electric motors, Brushless, Electric motors, Direct current, Permanent magnet motors
Is not a permanent magnet?
An electromagnet is a magnet while an electric current is running through the coil. Turn off the current and it is no longer magnetised, and is, therefore, not 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.
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.
Do permanent magnets produce electric currents?
Permanent magnets do not produce electric currents on their own. However, when a permanent magnet moves near a closed loop of wire or coil, it can induce an electric current in the wire due to electromagnetic induction.
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.
Which type of magnet is used in electric motors?
Permanent magnets or electromagnets are typically used in electric motors. Permanent magnets provide a constant magnetic field, while electromagnets have a magnetic field that can be controlled by the flow of electric current.
Why is a permanent magnet necessary for an electric motor to function effectively?
A permanent magnet is necessary for an electric motor to function effectively because it creates a magnetic field that interacts with the electric current flowing through the motor's coils, causing the motor to generate rotational motion. This interaction between the magnetic field of the permanent magnet and the electric current is essential for the motor to convert electrical energy into mechanical energy efficiently.
What part of an electric motor repels the poles of the permanent magnets?
The armature of an electric motor is the part that repels the poles of the permanent magnets due to the flow of electric current through the conductors in the armature, creating a magnetic field that interacts with the magnetic field of the permanent magnets to produce motion.
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.
How is a electromagnet diffrent then a permanent magnet?
An electromagnet is a temporary magnet that only produces a magnetic field when an electric current is flowing through it, while a permanent magnet retains its magnetism without needing an external electric current. Additionally, the strength of an electromagnet can be easily adjusted by changing the amount of current flowing through it, while the strength of a permanent magnet is fixed.
