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2 years ago

12

Like-charged bodies, when brought closer together, will: repel more strongly be neutralized repel less strongly attract more str

ongly

2 answers:

SVETLANKA909090 [29]2 years ago

5 0

Answer:

That's almost the true

Explanation:

it does not happen all the time

gogolik [260]2 years ago

3 0

The answer is A: Repel More Strongly

Explanation: I took the test but two alike magnets will push away form each other

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Explanation:

It is given that,

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(A) Magnetic field of a current loop is given by :

$B=\dfrac{\mu_oI}{2r}$

I is the current in the loop

$I=\dfrac{2Br}{\mu_o}$

$I=\dfrac{2\times 2.5\times 10^{-3}\times 0.007}{4\pi \times 10^{-7}}$

I = 27.85 A

(B) Magnetic field at a distance r from a wire is given by :

$B=\dfrac{\mu_o I}{2\pi r}$

$r=\dfrac{\mu_o I}{2\pi B}$

$r=\dfrac{4\pi \times 10^{-7}\times 27.85}{2\pi \times 2.5\times 10^{-3}}$

r = 0.00222 m

$r=2.2\times 10^{-3}\ m$

Hence, this is the required solution.

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