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प्रश्न
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उत्तर
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.
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संबंधित प्रश्न
You are given two similar bars. One is a magnet and the other is of soft iron. How will you distinguish and identify them ?
Draw diagrams of the artificial magnets of four different shapes?
Answer the following.
Can you bring two similar poles of two different magnetic close together easily? Why?
Tick the most appropriate answer.
The surest test of magnetism is
Write the answer in your word.
What are the practical uses of a magnet?
Describe two simple experiments to support the statement that magnetism is a property of the molecules of a magnet.
Bar magnets are often stored in pairs as shown in the figure. E and F being pieces of metal.
Why are E and F placed in contact with the poles of the magnets as shown in the diagram?
Define the term Effective length of a magnet
State three important properties of a magnet.
