2 years ago

PHYSICS!

Physics

1 answer:

Allushta [10]2 years ago

6 0

Answer:

Friction is useful in some cases like walking and cycling ..

but it is unwanted in machines as it create unwanted sounds and heat .,due to which we loss energy

Explanation:

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A rectangular loop with dimensions 4.20 cm by 9.50 cm carries current I. The current in the loop produces a magnetic field at th

rusak2 [61]

Answer:

1.63 A and in clockwise direction

Explanation:

The magnetic field due to the rectangular loop is :

$B=\frac{2 \mu_0 I}{\pi}\left(\frac{\sqrt{L^2+W^2}}{LW}\right)$

Given : W = 4.20 cm

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Rearranging the above equation, we get

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I = 1.63 A

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And the direction of current is clockwise.

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2 years ago

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Kobotan [32]

Answer:

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Explanation:

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