0
1.Current in the coil produces a magnetic field
also accept "the coil becomes an electromagnet"
or "the coil is magnetized"
2.The magnet is repelled or attracted
also accept "the field or coil exerts a force on the
magnet"
Anonymous
Add your answer:
Earn +20 pts
How does a moving coil microphone work?
A moving coil microphone is used for a variety of audio applications primarily for recording and sound reinforcement. It can be used in a wide range of situations from professional recording studios to live performances and is the most common type of microphone in use today. Its versatility and reliability make it a great choice for many different applications. Recording: Moving coil microphones are used to capture audio in the studio such as vocal and instrumental performances spoken audio and sound effects. Live sound reinforcement: Moving coil microphones can be used in live sound reinforcement situations such as concerts theater performances and public speaking events. Broadcast: Moving coil microphones are used in broadcasting applications such as radio and television.Moving coil microphones offer a number of advantages including high sensitivity low self-noise and low distortion. They are also relatively inexpensive and easy to use making them a popular choice for many different audio applications.
Why you use current transformer and rogowski coil both?
if you want to measure a wide range of current, example 1mA to 200A (if the device is intended for the metering and protection), normally CT and rocoil is used together, it is difficult to make rocoil sensitive in range of 1mA, but you can do the task with the CT, but the same CT gets saturated above 5A, in that case rocoil start measuring, since rocoil is air core it wont saturate.
How do you make an electromagnetic generator?
wrap a bunch of insolated wire around a ferrous material e.g. a large nail. apply DC voltage to each wire (positive and negative side). when current flows through wire a magnetic field is induced. be very careful when trying this and make sure you don't have shorts and start with a low voltage
What is interposing relay?
It is a relay that has two states. in one state a set of contacts will make or break. In the other state the other set of contacts will make or break. One coil operating two sets of common, normally open, normally closed. each set of contacts will change states when the coil is momentarily energized.
When current transformer is overloaded?
when your current transformer is over loaded make sure it turns back into a car and drives away
What must pass through a coil in order to make an electromagnet?
An electrical current will cause an electromagnet to energise.
What voltage should be applied to make an electromagnet?
The strength of the electromagnet depends on the magnitude of the current in the coil around it.The voltage required is only what produces the desired current in the coil. Since the coil is nothing butwire, the resistance is quite low, and a relatively small voltage produces a relatively large current.
How can you strengthen an electromagnet?
make an electromagnet stronger by doing these things: * wrapping the coil around an iron core * adding more turns to the coil * increasing the current flowing through the coil.
What would happen if the current passing through the coil was too large?
The coil offers some amount of Resistance to the flow of Electric current through the coil. The Resistance of the coil depends on the material used to make the coil and the thickness of the coil wire ( its gauge ) When a current flows through the coil, the voltage drop across the coil and the Power dissipated in the coil both are proportional to the magnitude of current and the coil resistance. Normally the coil is rated to carry certain current and dissipate certain amount of power without causing any damage. If a large magnitude of current flows through the coil beyond its rating , the voltage drop across the coil and the power dissipation in the coil both increase substantially causing over heating of the coil. This can damage the coil and may result in burning of the coil
How can you make a electromagnet lose its magnetism?
by decreasing its current,by decreasing turns of coil
How do you make a straw flower?
glue petals on a straw
How can you use a solenoid to make a temporal magnet?
Passing it through a coil that has a DC current through it. The DC current creates a field which allows the realignment of electrons in the solenoid, allowing it to have temporary magnetic properties. Passing an AC current through the coil would demagnetize the solenoid.
What is it called when you make a shot behind the arc in NBA?
a threee pointer
Do magnets make electricity?
No. Magnets create an electric feild, not electricity.However, when you spin a magnet inside a coil of wire (or you can spin the coil of wire instead), you will create an electrical current.
How do you make a current coil?
I am sure you mean a Tesla coil. Word of warning, if you don't have experience in the field, don't try to do it on your own. There is more written on how to make one. In your internet search engine type making a Tesla coil and in the answer page you will get many ways to create your own.
What are 4things needed to make an electromagnet?
* A conductor that can be shaped into a coil. Copper wire, for example. * An isolator that keeps the conductor's threads isolated from each other, thus forcing the current through all loops of the coil. * An electric current through the coil. * Typically, but not necessarily, a ferrite core to bundle the magnetic field.
How can you check Integrated Circuits with a multimeter?
To check the IC by the multimeter, you have to make sure that the pointer points at the current. You can then connect the multimeter across the check the IC.
