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प्रश्न
A charged glass rod attracts a charged plastic straw.
विकल्प
True
False
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उत्तर
This statement is True.
Explanation:
A charged glass rod has positive charges on its surface, while a charged plastic straw has negative charges on its surface. Since unlike charges attract each other, a charged glass rod attracts a charged plastic straw.
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संबंधित प्रश्न
Suppose your writing desk is tilted a little. A book kept on it starts sliding down. Show the direction of frictional force acting on it.
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List three ways of reducing friction.
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Answer the following in a word or two or in a sentence.
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Weight remaining the same, friction is independent of ............. of surface in contact.
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The force of friction acting between two bodies in contact while at rest is known as ................ friction.
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Friction is offered by
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Smoother the surface, ................. is the frictional force offered by it.
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Friction is a type of .................
Answer the following in short.
How can sliding friction be changed into rolling friction easily?
Answer the following in detail.
Describe three different ways by which friction can be increased to help us in various situations?
Rolling friction is slightly greater than sliding friction.
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Is there any possibility of making a special device to measure the magnitude of friction directly?
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