All electric motors are electromagnets.
no
a electromagnet is bigger than a bar magnet
Reversing the current flow in an electromagnet changes the direction of the magnetic field it produces. This can be useful for changing the polarity of the electromagnet or controlling the direction of a mechanical system it is used in.
In what ways are enterpreneurs useful to suppliers
Increase the number of coils in the electromagnet. Use a stronger magnetic material in the core of the electromagnet. Increase the current flowing through the wire winding of the electromagnet.
In what ways are enterpreneurs useful to suppliers
In what ways are fossils useful to geologist?
i think in my engineering it is very useful to me to solve the problem in different ways.
This depends on which chemical you are referring to because different chemicals are beneficial in there own ways.
Maps are useful to us in different ways such as providing information of locations or ground quality such as fault structures or existing drainage.
five ways how plants are useful to us
different forms of electromagnet