PLEASE HELP ME!!!!!!!!!!!!!

Physics

1 answer:

Nataly [62]2 years ago

6 0

Answer:

D gravity

Explanation:

please mark me brainliest

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Lava that cools so quickly that ions do not have time to arrange themselves into crystals will form igneous rocks with a _____ t

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A solenoid used to produce magnetic fields for research purposes is 2.1 m long, with an inner radius of 28 cm and 1000 turns of

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Answer:

I = 2172.46 A

Explanation:

Given that,

The length of a solenoid, l = 2.1 m

The inner radius of the solenoid, r = 28 cm = 0.28 m

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The magnetic field in the solenoid, B = 1.3 T

We need to find the current carried by it. We know that, the magnetic field in a solenoid is given by :

$B=\mu_o nI\\\\or\\\\B=\mu_o \dfrac{N}{L}I\\\\I=\dfrac{BL}{\mu_o N}$

Put all the values,

$I=\dfrac{1.3\times 2.1}{4\pi \times 10^{-7}\times 1000}\\\\I=2172.46\ A$

So, it carry current of 2172.46 A.

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3 years ago

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Answer:

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Explanation:

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Answer:

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