A SHORT ANSWER TYPE QUESTIONS
1. What is magnet ? Mention the basic properties of magnet
curest test of magnetism ?
Answers
Explanation:
=>What is a Magnet?
A magnet is defined as
An object which is capable of producing magnetic field and attracting unlike poles and repelling like poles.
=>Properties of Magnet
Following are the basic properties of magnet:
When a magnet is dipped in iron filings, we can observe that the iron filings cling to the end of the magnet as the attraction is maximum at the ends of the magnet. These ends are known as poles of the magnets.
Magnetic poles always exist in pairs.
Whenever a magnet is suspended freely in mid-air, it always points towards north-south direction. Pole pointing towards geographic north is known as the North Pole and the pole pointing towards geographic south is known as the South Pole.
Like poles repel while unlike poles attract.
The magnetic force between the two magnets is greater when the distance between these magnets are lesser.
curest test of magnetism ?
=>Repulsion
Repulsion is the surest test because any substance made of iron,nickel, cobalt will also have attraction but won't have repulsion. Repulsion and not attraction is a sure test of magnetism. Repulsion is the surest test of the magnets, because a magnetic substance also has attractive property.
The Substance which have the property of attracting small pieces of iron, nickel, cobalt etc are called magnets. And this propety of attraction is called magnetism.