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Contact [7]
3 years ago
15

What happens to an iron bar when it is placed within the coils of a solenoid

Physics
2 answers:
Len [333]3 years ago
7 0
<h3><u>Answer;</u></h3>

it becomes a magnet.

<h3><u>Explanation;</u></h3>
  • When an iron bar is placed within the coils of a solenoid it becomes a magnet. This type of a magnet is called an electromagnet.
  • An electromagnet is made by placing a ferromagnetic material such as iron in a solenoid of a closed circuit.
  • Electromagnets are used in all kinds of electric devices including hard disk drives, generators, motors, etc.
Rina8888 [55]3 years ago
6 0
When the iron bar is placed within the coils of a solenoid it then becomes a magnet.  
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Answer:

a) By v^2 = u^2 + 2as => a= 70291.70.

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Explanation:

a) By v^2 = u^2 + 2as

(950)^2 = 0 + 2 \times a \times 0.75\\a = 601666.67 m/s^2\\a/g = 688858.70/9.8 = 70291.70

(b)By v = u + at

950 = 0 + 601666.67 \times t\\t = 1.58 x 10^-3 sec = 1.58 ms

(c)By v^2 = u^2 - 2gh

0 = (950)^2 - 2 \times9.8 \times H\\H = 46045.92 m

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