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प्रश्न
Try out the experiment of the iron filings and the magnet.
epitomises: is a perfect example of.
उत्तर
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Materials Needed: You'll need some iron filings, a sheet of paper, and a bar magnet.
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Preparation: Place the sheet of paper on a flat surface.
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Positioning the Magnet: Place the bar magnet under the sheet of paper. You can experiment with different orientations, such as placing the magnet flat or standing it on one end.
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Sprinkling Iron Filings: Gently sprinkle the iron filings onto the paper above the magnet.
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Observation: You will observe that the iron filings align themselves along the magnetic field lines of the magnet. Near the poles of the magnet, where the magnetic field is strongest, the filings will be denser.
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Experimenting Further: You can experiment with different magnets, or even multiple magnets, to see how the patterns change.
This experiment is a perfect example of how a physical phenomenon, which is not visible to the naked eye, can be represented visually in a simple and educational way. It helps in understanding the concepts of magnetic fields, magnetic poles, and the way magnetic forces act on ferromagnetic materials like iron.
संबंधित प्रश्न
Write what is implied in the following sentence.
But few know his inspirational life story, which is all about courage and fighting against the odds.
(What does it tell you about Faraday’s life?)
Write what is implied in the following sentence.
Even then Davy did not have much hope for Faraday.
(What do the words 'even then' suggest?)
Write what is implied in the following sentence.
People started telling Davy that of all his discoveries, the best was Faraday himself.
(What does it suggest about Davy’s work?)
Break the passage into convenient smaller sections.
Give sub-headings or titles to each section.
List the different gadgets and instruments mentioned in the passage. Find more information about them (at least 3), using the internet.
Find out more about the following scientist with the help of the internet.
Michael Faraday
Find out more about the following scientist with the help of the internet.
Humphry Davy
Find out more about the following scientist with the help of the internet.
James Maxwell
Think of as many examples of the following as you can within five minutes and write them in the appropriate column.
| Type of machine | Examples |
| Simple machines that are operated by hand |
|
| Machines that run on electricity | |
| Electronic devices |
Write as many uses of the following as you can. Form groups of four. Compare your lists. Make a long list by putting together the lists of all members.
- A cloth bag
- a wicker basket
- a glass bottle or jar
- a steel bowl
- a thick string or rope
Choose any one machine or device and prepare a short note about it. It should include
- The structure of the device
- How it works (functions)
- A labelled diagram
- One or two lines about when and how it evolved.
What were the odds against Faraday in his childhood?
What is the meaning of:
Reading became his obsession?
What is the meaning of:
Electricity became a lifelong fascination?
Why do you think Faraday’s friend gave him a free ticket to Davy’s programme?
What actions and thoughts of Faraday show that he was inspired by Davy?
Guess the meaning of mentor.
Was Davy fair in his treatment of Faraday?
How did Faraday respond to that treatment?
An induction motor is a commonly used electrical machine. What examples of its use are given here?
Guess the meaning of reverse engineer it.
Faraday kept a souvenir of his failure as a source of inspiration.
Write the idea behind an electrical generator.
‘In order to succeed, your desire for success should be greater than your fear of failure’.
- Michael Faraday
Why were Faraday’s drawings not accepted?
Does it mean they were wrong?
Find the following matter in the passage and copy the missing word.
When he was twelve, ______ school ______.
Find the following matter in the passage and copy the missing word.
Faraday decided that ______ scientist - ______.
Find the following matter in the passage and copy the missing word.
Davy never believed ______ science ______.
Now complete the following sentence using your own word.
When he was twelve, ______.
Now complete the following sentence using your own word.
He decided that ______.
Now complete the following sentence using your own word.
He never believed ______.
Now complete the following sentence using your own word.
People started telling ______ that ______.
Now complete the following sentence using your own words.
He handed him ______ which ______.
Now complete the following sentence using your own word.
He went on to prove that ______.
