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TEA [102]
3 years ago
13

ILL GIVE BRAINLIEST!! URGENT PLEASE HELP

Physics
1 answer:
anygoal [31]3 years ago
6 0
I believe the answer is the second one.
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The core of a 400 Hz aircraft transformer has a net cross-sectional area of 13 cm2. The maximum flux density is 0.9 T, and there
jenyasd209 [6]

Answer:

32.76 Volt

Explanation:

frequency, f = 400 Hz

Area of crossection, A = 13 cm²

Maximum flux density, B = 0.9 tesla

Number of turns in secondary coil, N = 70

Let the maximum induced voltage is e.

According to the Faraday's law of electromagnetic induction, the induced emf is equal to the rate of change of magnetic flux.

e = dФ/dt

e=\frac{NBA}{t}

Time is defined as the reciprocal of frequency.

So, e = N B A f

e = 70 x 0.9 x 13 x 10^-4 x 400

e = 32.76 volt

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A piece of plastic is uniformly charged with surface charge density eta1. The plastic is then broken into a large piece with sur
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kifflom [539]

Answer:

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Describe how transverse waves can be produced by a rope. Then describe hiw pieces of the rope move as waves pass.
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What is the role of Langerhans cells?
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Langerhans cells exist on the surface of the skin. They help to protect you by keeping dangerous microbes from entering your body. Langerhans cells do this in two very different ways: by protecting your skin from infection and also by stimulating allergic reactions.

 

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