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Law Incorporation [45]
4 years ago
15

Which of the following statements about a metal wire in equilibrium are true? Select all that apply. There cannot be excess char

ges on the surface of the wire. There may be excess charges in the interior of the wire. The electric field inside the wire may be nonzero but uniform. The net electric field everywhere inside the wire is zero. The interior of the metal wire is neutral. There may be a constant flow of mobile electrons inside the wire. There may be excess charges on the surface of the wire. There is no net flow of mobile electrons inside the wire. There are no excess charges in the interior of the wir
Physics
1 answer:
olga_2 [115]4 years ago
3 0

Answer:

There may be excess charges in the interior of the wire

The net electric field everywhere inside the wire is zero

The interior of the metal wire is neutral.

There may be excess charges on the surface of the wire.

There is no net flow of mobile electrons inside the wire.

Explanation:

For any metal wire in equilibrium position, there may be excess charges in the interior of the wire and the net electric field everywhere inside the wire is zero. Additionally, the interior of the metal wire is always neutral and there is likely to be excess charges on the surface of the wire. Moreover, it's important to note that for a metal wire in equilibrium, there is no net flow of mobile electrons inside the wire.

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Alisiya [41]

Answer:

Under normal conditions, a magnetic material like iron doesn't behave like a magnet because the domains don't have a preferred direction of alignment. On the other hand, the domains of a magnet (or a magnetized iron) are all aligned in s specific direction.

7 0
3 years ago
A proton starting from rest travels through a potential of 1.0 kV and then moves into a uniform 0.040-T magnetic field directed
Hatshy [7]

Answer:

0.114m

Explanation:

From the general expression for the radius of the proton's resulting orbit, we have

r=\frac{mv}{qB}

where q is is the charge of the proton 1.6*10^{-19}C

m is the mass of the proton  1.67*10^{-27}kg

B is the magnetic field  0.040T

and v i the speed.

to determine the speed, we use the expression

Kinetic Energy=qV

1/2mv^{2}=qV

where <em>V  </em>is the voltage value i.e 1.0kv

and v is the speed

Hence, from simple rearrangement we have the speed v to be

v=\sqrt{\frac{2Vq}{m}} \\

if we substitute value, we have

v=\sqrt{\frac{2*1000*1.6*10^{-19} }{1.67*10^{-27}}} \\

carrying out careful arithmetic we arrive at

v=4.38*10^{5} m/s.

using the value for the speed in the expression for the radius of the orbit as stated earlier, we have

r=\frac{1.67*10^{-27}*4.38*10^{5}}{1.6*10^{-19}*0.04} \\

r=0.114m

7 0
3 years ago
Which goes faster? *<br> light in space<br> sound in air<br> sound in space<br> light in water
andrezito [222]

Answer:

Hello! Your answer is, sound in the air is faster

Explanation:

The speed of sound through air is about 340 meters per second. It's faster through water and it's even faster through steel. Light will travel through a vacuum at 300 million meters per second. So they're totally different scales.

Hope I helped! Ask me anything if you have any questions! Brainiest plz. Hope you make an 100% and have a nice day! -Amelia♥

8 0
3 years ago
The sun will eventually become a
nadezda [96]
<span>The sun will eventually become a

>white dwarf 5 billion years from now then 2 billion years after that the core will crystallize, </span><span>leaving a giant diamond in the center of our solar system</span><span />
5 0
3 years ago
Use the circuit diagram to decide if the lightbulb will light. Justify your answer
elena-14-01-66 [18.8K]

Answer:

It will.

Explanation:

For a circuit to function properly, everything has to be connected. As the diagram shows that everything is connected and there are no gaps, it will light.

3 0
3 years ago
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