PLLLZ HELP Compare and contrast electric potential energy and electric potential difference? Please use 2 content related sentences

Answers

Answer 1

Answer:

The electric potential difference is the electric potential energy per unit charge

Explanation:

First of all, we define the concept of electric potential. The electric potential is a measure of the gradient of the electric field at a certain point of the space. The electric potential at a distance $r$ from a positive charge of magnitude $q$ is given by

$V(r) = (kq)/(r)$

where k is the Coulomb's constant.

Now we can define the electric potential energy and the electric potential difference:

Electric potential energy is the energy possessed by a charge due to the presence of an electric field. For a charge of magnitude $q$ immersed in an electric field, its potential energy is given by $U=qV$ , where V is the electric potential at the location of the charge.
The electric potential difference is simply the difference in electric potential between two points in the space. For instance, if the potential at point A is V(A) and the potential at point B is V(B), then the potential difference is $\Delta V = V(A)-V(B)$

The electric potential energy is also defined as the work done on a charge q moved through a potential difference of $\Delta V$ . Consequently, the potential difference $\Delta V$ represents the work per unit charge done, i.e. the work done when moving a unitary charge through a potential difference $\Delta V$ .

Learn more about potential difference and current:

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Rain,wind,industrial agriculture and waves causes what

Answers

it all can cause erosion

If the mass of one object is tripled, and the distance between them is doubled, how does the force of gravity change?a. force is multiplied by 4
b. Force is divided 3
c. Force is multiplied 3/4
d. Force is divided 3/4

Answers

Force between two object is given by F = Gm1m2/r^2
If the mass of one object is tripled, and the distance between them is doubled,
then F(new) = Gm13m2/(2r)^2 = 3Gm1m2/4r^2 = 3/4 x Gm1m2/r^2 = 3/4 x F
i.e. F(new) = 3/4 multiplied by F.
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The grid in a triode is kept negatively charged to prevent...-the variations in voltage from getting too large
-the electrons from being attracted to the grid instead of the anode
-electrons from escaping from the tube containing the triode

Answers

I think the correct answer is the third statement, electron from escaping from the tube containing the triode. The negative charge on the grid repels any electron in the tube. As a result,the flow of current is controlled. If the field is that strong, all current flow will stop resulting to maintaining the electron cloud in the tube.

Answer:

B. the electrons from being attracted to the grid instead of the anode.

Explanation:

just because its the answer

Define unit of electric work (JOULE) in relation to quantity of charge and potential difference.

Answers

1 volt = 1 joule per coulomb

It takes 1 joule of work to force a coulomb of charge enough closer to a charge
with the same sign to raise its potential 1 volt.

If you allow 1 coulomb of charge to fall to where its potential is 1 volt less,
it gives up 1 joule of energy.

Can a vector be shorter than one of its components

Answers

It can never be shorter than a component - magnitude of avector is the square root of the sum of the components squared, and a square function never produces a negative number. However, it can be the same size as its component, if that component is the only one

Protons and electrons possess the same amount of charge, 1.6 × 10−19 C, but the charges have opposite signs. If a proton and an electron are positioned 4.9 × 10−11 m away from each other, what is the electrostatic force between them?A.
−9.6 × 10−8 N
B.
−6.0 × 10−7 N
C.
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D.
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Answers

Answer:

A:-9.6×10-8 N

Explanation:

is correct answer

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