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Why does a metallic piece become very hot when it is surrounded by a coil carrying high frequency alternating current?
This is because of the eddy curents produced due to the changing electric and magnetic fields.
How did the electric drill come to be invented?
Wilhelm Fein invented the portable electric drill in 1895.
Why electric current across a wire drops?
Electric current does not drop. Electric voltage, however, drops across a wire because the wire has non-zero resistance. (Do not confuse electric current with electric voltage - they are not the same.)The reason current does not drop is that, in a series circuit, according to Kirchoff's current law, the current at every point in a series circuit is the same.
Is electronic engineering is better?
No because you could hurt yourself or die wlth an electric shock.
How an electrical system transmit energy due to the movement of electric charge?
because it's awesome
How strong is an electromagnet compared to a permanent magnet?
An electromagnet is typically stronger than a permanent magnet because it can be adjusted by changing the electric current flowing through it. Permanent magnets have a fixed magnetic strength that cannot be easily altered.
Why is an electromagnet unique?
An electromagnet is unique because it can be turned on and off by controlling the flow of electric current through the wire coils. This allows for a greater degree of control compared to permanent magnets. Additionally, the magnetic strength of an electromagnet can be easily adjusted by changing the amount of current flowing through the coils.
What will increasing the electric current to an electromagnet do to its magnetism?
An increasing electric current moving into an electromagnet will become stronger in its magnetism. As the atoms align the increasing magnetism will stop at one point, making the electromagnet as strong as it can be.
In an electric motor periodically changing the direction of current in the electromagnetic can cause the axle to spin because?
In an electric motor, periodically changing the direction of current in the electromagnet causes the magnetic field to alternate. This changing magnetic field interacts with the permanent magnets on the rotor, creating a rotational force that causes the axle to spin. This process is known as electromagnetic induction.
Why were some objects attracted by the electromagnet?
Objects were attracted to the electromagnet because the electric current running through the coil generated a magnetic field. This magnetic field magnetized the objects, causing them to be pulled towards the electromagnet.
How do electromagnet get their names?
An electromagnet is only magnetic when an electric current is run through it.
Why does a crane use an electromagnet instead of a permanent magnet?
A crane uses an electromagnet because it allows for greater control over the magnetic force. The strength of an electromagnet can be adjusted by changing the amount of electric current flowing through it, making it more versatile for picking up different loads. Additionally, an electromagnet can be turned on and off as needed, which can improve safety and efficiency in crane operations.
Is an electromagnet created by electricity?
Yes. Electromagnets are named only because magnetism is caused because of electric current flowing through.
Would scrap metal be attracted to electromagnet?
Yes, scrap metal can be attracted to an electromagnet because when an electric current passes through the coil of wire in the electromagnet, it creates a magnetic field that can attract ferromagnetic materials like iron and steel.
Why an electromagnet attracts metal?
An electromagnet attracts metal because when an electric current flows through a coil of wire, a magnetic field is created around it. This magnetic field interacts with the metal object, inducing a temporary magnetic force that pulls the metal toward the electromagnet.
Is a horseshoe electromagnet bar magnet or a magnet pole a example of a temporary magnet?
A horseshoe electromagnet is an example of a temporary magnet because it only exhibits magnetic properties when an electric current is passed through it. When the current is turned off, the magnetism disappears.
What is a control test tube?
There are many uses of the electromagnet, it is used to invent generators and electric motors, used it to control the switch relay, use in practical industries, and even in an electric bell etc. Because the electromagnet is a type of magnet in which the magnetic field is produced by the electric current.
