2 years ago

Why mole is called fundamental unit.

Physics

1 answer:

gladu [14]2 years ago

4 0

Explanation:

because it doesn't depend upon other unit like kg meter and second

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A filamentary conductor is formed into an equilateral triangle with sides of length carrying current i . find the magnetic field

arsen [322]

magnetic field due to a finite straight conductor is given by

$B = \frac{\mu_0 i}{4\pi r}(sin\theta_1 + sin\theta_2)$

here since it forms an equilateral triangle so we will have

$\theta_1 = \theta_2 = 60 degre$

also the perpendicular distance of the point from the wire is

$r = \frac{a}{2\sqrt3}$

now from the above equation magnetic field due to one wire is given by

$B = \frac{\mu_0 i}{4\pi \frac{a}{2\sqrt3}(sin60 + sin60)$

$B = \frac{\mu_0 i*2\sqrt3}{4\pi a}(\sqrt3)$

$B = \frac{3\mu_0 i}{2\pi a}$

now since in equilateral triangle there are three such wires so net magnetic field will be

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The force of gravity on a 1 kg object on the Earth's surface is approximately 9.8 N. For the same object in low-earth orbit arou

mojhsa [17]

Answer:

g = 8.61 m/s²

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distance of the International Space Station form earth is 200 Km

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r = 6400 + 200 = 6800 Km = 6.8 x 10⁶ n

using formula

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$g = \dfrac{6.67\times 10^{-11}\times 5.972\times 10^24}{(6.8\times 10^6)^2}$

g = 8.61 m/s²

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<span>The word is "pitch", which is exactly that: How "high" or "low" a sound is.</span>

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1. Which of the following would be a testable hypothesis?

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B dropping a ball
C tentative and testable

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2 years ago

Why mole is called fundamental unit.​

Why mole is called fundamental unit.