Advertisements
Advertisements
Question
Answer the following.
Can you bring two similar poles of two different magnetic close together easily? Why?
Solution
No, because like poles repel each other when two magnetic are brought close to each other.
APPEARS IN
RELATED QUESTIONS
Fill in the blank
To light a table lamp and to run a refrigerator, we use ______ as the source of electricity.
How will you test whether a given rod is a magnet or not ?
What is the magnetic induction? Explain with the help of a diagram.
Answer the following.
Why is it not possible to isolate a single magnetic pole?
Fill in the blank.
Magnetic poles always exist in ...............
How will you do this?
Determine whether a material is magnetic or non-magnetic.
Which magnet will you use?
A window shutter opens and shuts continuously in the wind.
There are two knitting needles. One of them is magnetized. How will you find out which one is magnetized, if no other magnet is available?
Draw a clearly labelled diagram, to show how a steel bar is magnetised by a divided touch method. A written description is not required.
Match the following:
| 1. | Electricity and magnetism | a. | Step-down transformer |
| 2. | Force on the conductor | b. | Hans Christian Oersted |
| 3. | Electric bell | c. | I LB |
| 4. | Ns <Np | d. | Electromagnet |
