1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Flauer [41]
3 years ago
11

Two infinite planes of charge lie parallel to each other and to the yz plane. One is at x--1 m and has a surface charge density

of σ =-2.0 pC/m2. The other is at x = 5 m and has a surface charge density of σ 5.8 με/m2. Find the electric field for the following locations. a)x-1 m N/C (b)-1m
Physics
1 answer:
MariettaO [177]3 years ago
5 0

Answer:

    Ea = 3.2 10⁵ N / C

Explanation:

To calculate the electric field of each plane we will use Gauss's law, we create a Gaussian surface that is a cylinder that has the axis perpendicular to the plane, in this case the flow line between the cylinder walls and the surface is zero and all the flow is perpendicular to the base of the cylinder.

We apply the law of gauss flow to each side is the value of the electric field (E) for the area of ​​the cylinder (A); whereby the flow in the two directions is 2 E A

                 Φ = 2E A = ρₙt / εo

Where ρₙ is the charge inside the cylinder, as the charge density gives us, σ = Q / A

                 ρₙ = σ A

     By which we can clear the electric field

                E = σ A / 2εo

where it is worth 8.85 10⁻¹² C² / N² m². Let's calculate with this equation in the field for each plane

1  plane    σ= -2.0 pC / m²

               E1 = -2. 10⁻¹² / 2 8.85 10⁻¹²

               E1 = -0.113 N / C

The field line is directed to the plane

2 Plane    σ = 5.8 mC / m2

             

               E2 = 5.8 10-6 / 2 8.85 10-12

               E2 = 3,277 10 5 N / A

Field lines leave the plane

As we have the values ​​of each field in the whole space. Let's calculate in the field at the point x = 1 m

   To do this we must add the fields at the selected point vectorally, for this distance the point is between the two planes, so the field of plane 1 points to the left and the point of plane 2 also points to the left, consequently field adds

               Ea = E1 + E2

               Ea = 0.113 + 3.277 10⁵

               Ea = 3.2 10⁵ N / C

At point X = -1 m in this case the point is on plane 1, so this plane does not generate any field, it is an equipotential surface, the total field is equal to field 2

              Ea = E1 = 3.2 10⁵ N / C

Note that there is no difference in numbers values ​​by the difference between the load between each plane

You might be interested in
Please help ASAP- A book has a mass of 5 kg, a baby has a mass of 5 kg. Which one weighs more?
Sphinxa [80]

Answer:

Same mass

Explanation:

5kg and 5kg are the same that's the explanation

7 0
3 years ago
Read 2 more answers
Under which of the following conditions is Lactic acid fermentation most likely occur?
adell [148]
Lactic acid is caused by using atp without oxygen being avaliable
5 0
3 years ago
Which celestial objects come in direct contact with earth
Lubov Fominskaja [6]

Answer:

Sun

Explanation:

Any asteroid in space is a celestial body. Classification of Celestial Bodies. A star is a form of a celestial object made up of a shining spheroid of plasma held together by its own gravity. The nearby star to Earth is the Sun.

8 0
3 years ago
How are metals identified i the periodic table??
zaharov [31]

Answer:

okay here is a thing I learned when I was younger in my middle school:

Explanation:

my teacher would tell me that metals are considered a weak metals are on the left side and the good metals are located on the right side because the only way I remembered was the right means it is really strong and the left is weak and not that supportive. but I think that's how I still think it is or other people may have their own opinions. but hope this helped out with your question!

8 0
3 years ago
Read 2 more answers
An old light bulb draws only 54.3 W, rather than its original 60.0 W, due to evaporative thinning of its filament. By what facto
Lemur [1.5K]

Answer:

The factor of the diameter is 0.95.

Explanation:

Given that,

Power of old light bulb = 54.3 W

Power = 60 W

We know that,

The resistance is inversely proportional to the diameter.

R\propto\dfrac{1}{D}

The power is inversely proportional to the resistance.

P\propto\dfrac{1}{R}

P\propto D^2

We need to calculate the factor of the diameter of the filament reduced

Using relation of power and diameter

\dfrac{P_{i}}{P_{f}}=\dfrac{D_{i}^2}{D_{f}^2}

Put the value into the formula

\dfrac{D_{i}^2}{D_{f}^2}=\dfrac{54.3}{60}

\dfrac{D_{i}}{D_{f}}=0.95

D_{i}=0.95 D_{f}

Hence, The factor of the diameter is 0.95.

7 0
3 years ago
Read 2 more answers
Other questions:
  • Una lancha sube y baja por el paso de las olas cada 3.2 segundos, entre cresta y cresta hay una distancia de 24.5 m. ¿cual es la
    10·1 answer
  • In each case, you should demonstrate how you worked out your answer, as well as giving the answer.
    15·2 answers
  • Corita bounced a ball four times. She measured how high the ball bounced each time. She recorded her data in the table. Which bo
    9·2 answers
  • 6. An unknown material has a normal melting/freezing point of 225.0 °C, and the liquid
    10·1 answer
  • What are infrasound usages​
    15·2 answers
  • A 5kg book rests on a table. How much force is it exerting on the table?​
    10·2 answers
  • How does electromagnetic affect people in the world ?
    13·1 answer
  • as you kick a soccer ball with 8 m/s at an angle of 40, how long does it take to get to the highest point
    9·1 answer
  • In the southern hemisphere the summer solstice occurs when the sun is
    5·1 answer
  • PLEASE HELP I WILL MARK BRAINIEST!!!!!!!!! POSSIBLE ANSWERS BELOW!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!