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
Neko [114]
3 years ago
10

A parallel plate capacitor with plates of area A and plate separation d is charged so that the potential difference between its

plates is V. If the capacitor is then isolated and its plate separation is decreased to d/2, what happens to the potential difference between the plates?
Physics
2 answers:
scoray [572]3 years ago
7 0

Answer:

<em>The potential difference reduced by half of its value 0.5V</em>

Explanation:

<h3>Terms to Note</h3>

Potential difference

Potential difference is the difference in the potential energy of two points along a conductor carry a charge.

Capacitance

Capacitance is the measure of energy that is stored in a capacitor which is a circuit component that stores energy

Step by Step Calculation

The capacitance, Charge and potential relationship can be expressed in equation 1

Q = CV .....................1

where Q is the charge

         C is the Capacitance and

        V is the potential difference

but C = εoA/d ....................2

Substitution the value of C in equation 2 into equation 1 we have

Q = εoA/d x V

making the potential difference the subject formula we have

V = Qd/εoA ...........................3

since the separation was decreased by d/2 we have a new value for d and is substituted into equation 3  and V is given a new value as V_{1\\}

V_{1\\} = \frac{Qd}{2e_{o}A }

To obtain the final potential difference we compute the ratio of V and V_{1\\}

V:V_{1\\} = Qd/εoA : Qd/2εoA

V:V_{1\\} = 1:2

V_{1\\} = 0.5 V

<em>So the new potential difference is 0.5 V  which halves of the first potential difference.</em>

faust18 [17]3 years ago
6 0

Answer:

Explanation:

Given a parallel plate capacitor of

Area=A

Distance apart =d

Potential difference, =V

If the distance is reduce to d/2

What is p.d

We know that

Q=CV

Then,

V=Q/C

Then this shows that the voltage is inversely proportional to the capacitance

Therefore,

V∝1/C

So, VC=K

Now, the capacitance of a parallel plate capacitor is given as

C= εA/d

When the distance apart is d

Then,

C1=εA/d

When the distance is half d/2

C2= εA/(d/2)

C2= 2εA/d

Then, applying

VC=K

V1 is voltage of the full capacitor V1=V

V2 is the required voltage let say V'

Then,

V1C1=V2C2

V × εA/d=V' × 2εA/d

VεA/d = 2V'εA/d

Then the εA/d cancels on both sides and remains

V=2V'

Then, V'=V/2

The potential difference is half when the distance between the parallel plate capacitor was reduce to d/2

You might be interested in
What is the objective lens?
Monica [59]

Answer:

The objective lens is an optical tool used to focus an image.

Explanation:

The objective lens is an optical tool that collects light emitted by an object under observation and focuses the  rays of light in order to form a real and magnified image  They are used in optical instruments like microscopes, cameras, telescopes, etc. and are also referred as objective or object glasses.

5 0
2 years ago
How can a soccer ball and a small tennis ball bouncing relates to newtons first law interita?
Anna35 [415]

Answer:

I think it has something to do with both inertia and gravity?

7 0
3 years ago
Highest density if electrostatic charge in a metal is found in​
arsen [322]
There’s no picture so how r we supposed to answer it
8 0
3 years ago
Please dont delete this question......
Juli2301 [7.4K]

Answer:

c

Explanation:

8 0
2 years ago
Read 2 more answers
Picture attached please help! 2 different questions!
Maksim231197 [3]

Wave A would have higher amplitude

Hope this helps :D

7 0
3 years ago
Read 2 more answers
Other questions:
  • Jason applies a force of 4.00 newtons to a sled at an angle 62.0 degrees from the ground. What is the component of force effecti
    12·1 answer
  • Does visible light make up a relatively large part or a relatively small part of the electromagnetic spectrum?
    7·1 answer
  • Sarah and her friends the swim team are playing on the high dive. One of Sarah's friends throws her back pack, containing her sw
    11·1 answer
  • A ball of mass is released from rest at a height of 30 how fast is it going when it hits the ground
    10·1 answer
  • How to find capacitance of a conductor?
    7·1 answer
  • What is the acceleration of a proton moving with a speed of 6.5 m/s at right angles to a magnetic field of 1.4 T?
    11·1 answer
  • An elevator is moving is an upwards
    15·1 answer
  • A Navy vessel is traveling due north during wartime. A torpedo has been launched by an enemy directly toward the stern (rear) of
    15·1 answer
  • Properties of helium
    7·1 answer
  • A 15 kg dog jumps out a stationary sled which has a mass of 40 kg. If
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!