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Illusion [34]
2 years ago
12

A transformer is designed to convert the voltage from 240 V to 12 V, and has 4000 turns on its primary coil. The turns on its se

condary coil should be?
Note: V D /Vs=Np/Ns

A. 100

B. 200

C. 120

D. 480​
Physics
1 answer:
harkovskaia [24]2 years ago
4 0

Answer:

yaayyaysysysa

Explanation:

gsgssggsgsgsysyshehsh

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Where does energy originate ina food web
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The critical angle between a medium and air is 430. What is the speed of light in that medium?
vagabundo [1.1K]

Answer:

The speed of light is that medium is 281907786.2 m/s.

Explanation:

since the critical angle is Фc = 430, we know that the refractive index is given by:

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then if n is the refractive index of the medium and c is the speed of light, then the speed of light in the medium is given by:

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8 0
3 years ago
What is the formula for calculating wave speed?
tatiyna
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3 years ago
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Range of motion is the distance an object can travel when separated from another object. Please select the best answer from the
Lady_Fox [76]
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3 years ago
The diagram shows monochromatic light passing through two openings.
rusak2 [61]

Answer:

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Explanation:

Some definitions:

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For light waves interfering with each other, 'white' means costructive interference, while 'black' means destructive interference (because black is absence of colors, so this means that the waves cancel each other out). In this problem, we see that point X, Y and X are white, therefore they are point of constructive interference, where the waves strengthen each other.

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3 years ago
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