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Crank
3 years ago
14

Does a thicker core make an electromagnet stronger?

Physics
1 answer:
goldenfox [79]3 years ago
5 0

Answer:

Yes

Explanation:

The core of an electromagnet serves to stabilize the magnetic field created by the wire. The thicker the core, the more metal there is to amplify the current. Therefore, a thicker core does make an electromagnet stronger. Hope this helps!

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( Science ) If the sun is far away then why does it look like we get higher than it when we lift a camera high in the sky?
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Because the sun stays in the same place but your brain makes you think the sun is descending so your eyes think you're higher than the sun
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3 years ago
Which is not poor conductor?
lawyer [7]

Answer:

Metal vase

Explanation:

Pure water is not a good conductor, and neither is plastic or cotton. Metal is the only one of the four that actually is a good conductor. For example, lighting hitting metal, this happens because the lightning connects to anything that has some kind of conductant.

4 0
3 years ago
A diver shines light up to the surface of a flat glass-bottomed boat at an angle of 30° relative to the normal. If the index of
son4ous [18]

Answer:

<h2>35</h2>

Explanation:

According to snell's law which states that the ratio of the sin of incidence (i) to the angle of refraction(n) is a constant for a given pair of media.

sini/sinr = n

n is the constant = refractive index

Since the diver shines light up to the surface of a flat glass-bottomed boat, the refractive index n = nw/ng

nw is the refractive index of water and ng is that of glass

sini/sinr = nw/ng

given i = 30°, nw = 1.33, ng = 1.5, r = angle the light leave the glass

On substitution;

sin 30/sinr = 1.33/1.5

1.5sin30 = 1.33sinr

sinr = 1.5sin30/1.33

sinr = 0.75/1.33

sinr = 0.5639

r = arcsin0.5639

r ≈35°

angle the light leave the glass is 35°

7 0
3 years ago
(1) Expansion of concrete
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Abcdefghijklmnopqurtuv
6 0
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An automobile is sitting on a hill which is 20 m higher than ground level. Find the mass of the automobile if it contains 362,60
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6 0
3 years ago
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