Advertisements
Advertisements
Question
Advertisements
Solution
Disadvantages of setting up large dams for hydro-electricity power station::
(1) It leads to large catchment area being submerged
(2) displacement of people from their places.
APPEARS IN
RELATED QUESTIONS
How will you test whether a given rod is made of iron or not?
With whom should I pair up?
| Group 'A' | Group 'B' |
| (a) Compass | 1. The highest magnetic force |
| (b) The door of a cupboard | 2. Like poles |
| (c) Repulsion | 3. A magnet |
| (d) Magnetic pole | 4. A magnetic needle |
Bar magnets are often stored in pairs as shown in the figure. E and F being pieces of metal.

What is the material of darkened part?
What do you understand by the term magnetic declination?
Give scientific reason:
Two steel needles hanging from the lower end of a vertical bar magnet do not hang vertically.

Differentiate between:
Primary and secondary cell.
Maximum iron filings stick in the middle of a bar magnet when it is brought near them.
The strongest natural magnet is ______.
The magnetic poles always exist in pairs.
