25. Electric Potential

Electric Potential

25. Electric Potential

# Electric Potential - Video Tutorials & Practice Problems

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concept

## Electric Potential

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2

example

## Movement of Charges in Potential Fields

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3

concept

## Potential Due To Point Charges

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4

Problem

ProblemHow far from a 5μC charge will the potential be 100 V?

A

4.5×10

^{−3}mB

450 m

C

45,000 m

D

450,000 m

5

Problem

ProblemA −1μC and a 5μC charge lie on a line, separated by 5cm. What is the electric potential halfway between the two charges?

A

1.44×10

^{4}VB

7.19×10

^{5}VC

1.44×10

^{6}VD

2.16×10

^{6}V6

example

## Potential Difference Between Two Charges

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PRACTICE PROBLEMS AND ACTIVITIES (29)

- What are the strength and direction of the electric field 1.0 mm from (a) a proton and
- A thin spherical shell with radius R_1 = 3.00 cm is concentric with a larger thin spherical shell with radius ...
- Two stationary point charges +3.00 nC and +2.00 nC are separated by a distance of 50.0 cm. An electron is rele...
- (a) How much excess charge must be placed on a copper sphere 25.0 cm in diameter so that the potential of its ...
- Two large, parallel conducting plates carrying opposite charges of equal magnitude are separated by 2.20 cm. ...
- Two large, parallel conducting plates carrying opposite charges of equal magnitude are separated by 2.20 cm. ...
- An infinitely long line of charge has linear charge density 5.00x10^-12 C/m. A proton (mass 1.67x10^-27 kg, c...
- At a certain distance from a point charge, the poten-tial and electric-field magnitude due to that charge are ...
- At a certain distance from a point charge, the poten-tial and electric-field magnitude due to that charge are ...
- An electron is to be accelerated from 3.00x10^6 m/s to 8.00x10^6 m/s. (a) Through what potential difference mu...
- At a certain distance from a point charge, the poten-tial and electric-field magnitude due to that charge are ...
- A positive charge q is fixed at the point x = 0, y = 0, and a negative charge -2q is fixed at the point x = a,...
- Two point charges q_1 = +2.40 nC and q_2 = -6.50 nC are 0.100 m apart. Point A is midway between them; point B...
- Two point charges q_1 = +2.40 nC and q_2 = -6.50 nC are 0.100 m apart. Point A is midway between them; point B...
- Two point charges of equal magnitude Q are held a distance d apart. Consider only points on the line passing t...
- Two point charges of equal magnitude Q are held a distance d apart. Consider only points on the line passing t...
- Point charges q_1 = +2.00 μC and q_2 = -2.00 μC are placed at adjacent corners of a square for which the lengt...
- A small particle has charge -5.00 μC and mass 2.00x10^-4 kg. It moves from point A, where the electric po-tent...
- BIO. Electrical Sensitivity of Sharks. Certain sharks can detect an electric field as weak as 1.0 μV/m. To gra...
- Two large, parallel conducting plates carrying opposite charges of equal magnitude are separated by 2.20 cm. ...
- A very long insulating cylinder of charge of radius 2.50 cm carries a uniform linear density of 15.0 nC/m. If ...
- An infinitely long line of charge has linear charge density 5.00x10^-12 C/m. A proton (mass 1.67x10^-27 kg, c...
- FIGURE EX26.3 is a graph of Ex . What is the potential difference between xi=1.0 m and xf=3.0 m? <IMAGE>
- A thin rod of length L and total charge Q has the nonuniform linear charge distribution λ(x)=λ ₀x/L, where x i...
- Two positive point charges are 5.0 cm apart. If the electric potential energy is 72 μJ, what is the magnitude ...
- A 1.0-mm-diameter ball bearing has 2.0×10^9 excess electrons. What is the ball bearing's potential?
- CALC The electric field in a region of space is Ex=5000x V/m , where x is in meters. b. Find an expression for...
- CALC An electric dipole at the origin consists of two charges ±q spaced distance s apart along the y-axis. a. ...
- INT CALC Two positive point charges q are located on the y-axis at y = ±a. a. Write an expression for the elec...