Question

Give one advantage of an electromagnet over a static magnet.

Answer 1

Hint:A magnet may be a material or object that produces a magnetic flux . This magnetic flux is invisible but is liable for the foremost notable property of a magnet: a force that pulls on other ferromagnetic materials, like iron, steel, nickel, cobalt, etc. and attracts or repels other magnets.

Complete answer:
The main advantages of an electromagnet over a static magnet is that the magnetic flux is often quickly changed by controlling the quantity of electrical current within the winding.Magnets are available in two main types: permanent magnets and electromagnets.A static magnet is usually magnetized whereas the magnetism of an electromagnet works only powered by electricity.

Advantages of electromagnets:
-One of the foremost important features of an electromagnet is the ability to vary its magnetism. When no current flows through the magnet’s wires, it's no magnetism.
-An electromagnet can produce a robust magnetic flux and its strength are often controlled by changing the strength of the present or the amount of turns within the coil.
-The polarity of an electromagnet is often changed by reversing the direction of the present that flows within the solenoid.

Note: The first advantage of using an electromagnet over a static magnet is that you simply can control its magnetic flux. you switch on and off the device's magnetic flux , and with many electromagnets, you'll even control the facility of the magnetic flux.