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Why does friction cause a magnetic force?
I just noticed that my scissors (which I use quiet often) attracts staple pins and safety pins.
What is the purpose of the coil in a speaker?
The coil produces a magnetic field. When power is applied to the wire in the coil, the result is a magnetic charge. This magnetic charge is part of how the speaker produces sound.
What is unit of magnetic charge?
Rate of change of electric charge produces magnetic charge. Unit of electric charge is coulomb C, unit of magnetic charge would be Ampere-meter.
What are the similarities of magnetic poles and electric charge?
Magnetic poles and electric charges both act the same as in:"opposites attract and same repel."Electric charge is the source of magnetic poles. The Magnetic pole is W=zq where z is the free space impedance 375 Ohms and q is the charge. W units is the Weber or volt-second.
A charge q is moving with a velocity v in free space write an expression for magnetic field produce at any point by this charge?
The magnetic field produced by this charge is B=( qz/r^2)v/c.
Are pins magnetic?
Yes it is
Is brass drawing pin magnetic?
Not if it is solid brass. Brass is a non-ferrous metal, and therefore, not magnetic.
Can a battery have a magnetic charge?
No the battery don't have a magnetic charge.
Why when we attract two pins with a magnet the pins will repel?
If you can attract the same two pins with one magnet, then they are both of either positive or negative charge. Because they have the same charge, the pins will repel each other.
What is the South Pole's magnetic charge?
The location we call 'Magnetic South' is a magnetic north pole. We do not use the term 'charge' to refer to magnetic poles.
Can a moving electric charge create a magnetic field?
Yes. A spinning charge will create a magnetic field as will a moving charge.
Why is electromagnetic activity called that?
Because the magnetic charge makes a electicric charge ing the magnetic field.
Why can a magnetic attract pins but not matches?
Matches are not made of a magnetic material, so the magnet will not attract it.
Why does friction cause a magnetic force?
I just noticed that my scissors (which I use quiet often) attracts staple pins and safety pins.
What are two fields surround a moving electric charge?
A moving electric charge will produce a magnetic field.A moving electric charge will produce a magnetic field.A moving electric charge will produce a magnetic field.A moving electric charge will produce a magnetic field.
What is the purpose of the coil in a speaker?
The coil produces a magnetic field. When power is applied to the wire in the coil, the result is a magnetic charge. This magnetic charge is part of how the speaker produces sound.
Why are things magnetic?
They contain charge.
