i thin magnetic force cant work in air
Magnetic flux through a loop is just a measurement of the strength of the magnetic field passing through the loop, and since magnetic field strength is directly related to magnetic force, magnetic force is directly related to the magnetic flux passing through the loop.
Magnets have magnetic force in them, obviously, to attract or repel magnetic materials. The materials could not be attracted without the magnetic force because the magnet forces the magnetic material towards it.
No of lines of force can pass through the unit area of magnetic field
Magnetic Force
yes
You can use a device that detects magnetism. A compass needle may suffice.
It's the force that is brought by a magnetic field. The Sun uses electro-magnetic waves to provide solar radiation to us because it can travel through a vacuum.
yes
yes, they pass through vacuum
Yes!
Typically, an electric current creates a magnetic force. Also, magnetic domains aligned correctly and properly can cause a magnetic force.
Magnetic force is the force exerted between magnetic poles, producing magnetization of force, either of attraction or of repulsion.