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neonofarm [45]
3 years ago
15

An ideal air mass source region must meet two criteria. First, it must be an extensive and physically uniform area. The second c

riterion is that the area is characterized by a general __________ of atmospheric circulation so that air will stay over the region long enough to come to some measure of equilibrium with the surface. A. agitation B. stagnation C. saturation D. increase
Physics
1 answer:
Usimov [2.4K]3 years ago
7 0

Answer:

The correct option is : B. stagnation

Explanation:

Air mass is a volume of air, which is described on the basis of water vapor content and temperature. It has the ability to adapt to the characteristics of surface below it and can travel thousands of miles from its source region.

An ideal source region of an air mass must fulfill the following two criteria:

1. It should be a large and uniform area.

2. the area should have stagnant circulation of atmospheric air .

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Answer:

Therefore,

Current required is , I

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Explanation:

Given:

Turns = N = 1140

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To Find:

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If N is the number of turns in the length, the total current through the rectangle is NI. Therefore, Ampere’s law applied to this path gives

\int {B} \, ds= Bl=\mu_{0}NI

Where,  

B = Strength of magnetic field

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\mu_{0}=Permeability\ in\ free\ space=4\pi\times 10^{-7}\ Tm/A

Therefore,

I =\dfrac{Bl}{\mu_{0}N}

Substituting the values we get

I =\dfrac{1.00\times 10^{-4}\times 0.415}{4\times 3.14\times 10^{-7}\times 1140}=0.0289\ Ampere

Therefore,

Current required is , I

I = 0.0289\ Ampere

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