Advertisements
Advertisements
Question
State two properties of a bar magnet ?
Advertisements
Solution
Properties of a bar magnet
- Attractive property : A magnet attracts small pieces of iron, cobalt or nickel.
- Directive property : A magnet when suspended freely, always point towards North and South direction.
- Like poles i.e. North and North or South and South poles repel each other.
- Unlike poles i.e. North and South attract each other.
- Poles always exist in pairs, i.e. poles of a magnet cannot be separated.
APPEARS IN
RELATED QUESTIONS
State three important uses of a magnet.
Answer the following.
Can you bring two similar poles of two different magnetic close together easily? Why?
Define the following term regarding a bar magnet:
Effective length
Draw a clearly labelled diagram, to show how a steel bar is magnetised by a divided touch method. A written description is not required.
What are magnetic keepers? What are they used for?
Give scientific reason:
Soft iron is used to make electromagnets.
People who made mariner’s compass for the first time.
A magnet attracts ______.
Consider the statement given below and choose the correct option.
Assertion: Iron filings are concentrated more at the magnetic poles.
Reason: The magnets are so sharp.
You are provided with two identical metal bars. One out of the two is a magnet. Suggest two ways to identify the magnet.
