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serious [3.7K]
3 years ago
7

I need help please with this question

Physics
1 answer:
Sergio039 [100]3 years ago
3 0

Explanation:

it's B =) hhggusucvgaugcavsjssnd

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A metal rod of length (L) moves with velocity (v), perpendicular to its length, in a magnetic field B, which is perpendicular to
Alborosie

Explanation:

If a metal rod of length L moves with velocity v is moving perpendicular to its length, in a magnetic field B, the induced emf is given by :

\epsilon=Blv

The electric field in the conductor is given by :

E=\dfrac{\epsilon}{l}\\\\E=\dfrac{Blv}{l}\\\\E=Bv

It is clear that the electric field is independent of the length of the rod. If the length of the rod is doubled, the electric field in the rod remains the same.

6 0
3 years ago
The magnetic field at the earth's surface can vary in response to solar activity. During one intense solar storm, the vertical c
Natalka [10]

Answer:

EMF = 1684.67 Volts

Explanation:

As we know that EMF is induced in a closed conducting loop if the flux linked with the loop is changing with time

So we can say

EMF = \frac{d\phi}{dt}

now we have

\phi = BA

here since magnetic field is constant so we have

EMF = A\frac{dB}{dt}

now we have

A = (190 \times 10^3)(190 \times 10^3)

A = 3.61 \times 10^{10} m^2

now we have

EMF = 3.61\times 10^{10} (\frac{2.8 \times 10^{-6}T}{60 s})

EMF = 1684.67 Volts

6 0
3 years ago
Why is natural gas referred to as a fossil fuel?
Yuri [45]
I believe it would be choice A. but not 100% possitive
7 0
3 years ago
Why does the sun move across the sky
nasty-shy [4]
Hey there,

<em />Answer:

The sun appears to move across the sky but it is actually the earth which is orbiting around the sun.

Hope this helps :D

<em>~Top</em>
3 0
3 years ago
Read 2 more answers
Water heating over a stove
enot [183]

Answer:

Use a pot??

Explanation:

8 0
3 years ago
Read 2 more answers
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