Physics 12

Name: ______________________

Electric Potential in Uniform Electric Fields We have seen that the electric field surrounding a point charge is not uniform – that it…

If we examine the electric field between charged plates we will find that it is…

+ Notice that the density of the lines is also…

In a uniform electric field we cannot use our previous formula:

This formula is only valid for describing the strength of non-uniform fields (point charges only!!!) To find an equation for uniform fields, we will once again draw a parallel with gravitational potential energy. Consider a mass sitting in a uniform gravitational field at some height. The mass will tend to move from… As it does it… If we allow the mass to fall the work done on it (W = ) is negative. If we want to lift the mass to a certain height we need to do positive work on it. A charged object in an electric field will behave in the same way, accelerating from an area of… As it does it… In the same way that we would do positive work on an object to lift it against gravity, we need to do work to bring a positive charge near a plate with positive potential. To calculate the work done in this case we can use the formula: W = Δ Ep = Fd It is often easier, however, to describe the work done in a uniform field using the potential difference between the two plates. Recall that potential difference: ∆V = A potential difference is generated any time we have areas of high and low potential energy, just like those generated by gravitational fields.

Physics 12

Name: ______________________

In order to determine the electric field between two charged plates we must use the formula: Where:

Example: Calculate the electric field strength between two parallel plates that are 6.00x10-2 m apart. The potential of the top plate is 6.0 V and the bottom plate is -6.0 V.

E = ∆V = d =

Example: An electron is accelerated from rest through a potential difference of 3.00x104 V. What is the kinetic energy gained by the electron?

Example: A proton, initially at rest, is released between two parallel plates as shown. a) What is the magnitude and direction of the electric field?

b) What is the magnitude of the electrostatic force acting on the proton?

c) What is the velocity of the proton when it exits the - 400 V plate?

## Electric Potential in Uniform Electric Fields Notes Blank.pdf ...

Electric Potential in Uniform Electric Fields Notes Blank.pdf. Electric Potential in Uniform Electric Fields Notes Blank.pdf. Open. Extract. Open with. Sign In.

#### Recommend Documents

Electric Potential Uniform Notes.pdf
There was a problem previewing this document. Retrying... Download. Connect more apps... Try one of the apps below to open or edit this item. Electric Potential ...

Electric Potential - GitHub
What is ÎPE, the change in potential energy now if charge q1 is moved from point. P to point R? 0. J. We go from a system where, with Q2 and Q6 having the ...

Electric Potential Notes.pdf
There was a problem previewing this document. Retrying... Download. Connect more apps... Try one of the apps below to open or edit this item. Electric Potential ...

Transverse electric and magnetic fields
(27). While this is a complete solution, we can additionally extract the electric and magnetic fields to compare results with Eli's calculation. We take vector grades to do so with Et = ãFtã. 1, and. Bt/. â. ÂµÏµ = ãâIFtã. 1. For the tran

electric charges and fields
E = 1/4ÏÎµ0 q/r2. Electric lines of force. Properties. Lines of force start from a positive charge and end in a negative charge. The tangent at any point on a line of force ..... Infrared waves maintain earth's temperature through green house effect

Electric Potential Energy Worksheet Blank.pdf
Electric Potential Energy Worksheet Blank.pdf. Electric Potential Energy Worksheet Blank.pdf. Open. Extract. Open with. Sign In. Main menu. Displaying Electric ...

charged particles in electric fields - with mr mackenzie
An electric field is a region where a charged particle (such as an electron or proton) experiences a force (an electrical force) without being touched.

ELECTRIC TRACTION Notes 1.pdf
7.2 Different systems of electric traction, DC and AC systems, diesel electric system,. types of services â urban, sub-urban, and main line and their speed-time ...

pdf-1837\electric-fields-of-the-brain-the ... - Drive

Detection of oceanic electric fields based on the ...
development of an analytic model for the signatures radiatcd by a target. It is based on a dipolar representation of tlie ship and on the assumption of a three- ...

A Mechanism for Action of Oscillating Electric Fields on Cells
*Department of Cell Biology and Biophysics, Faculty of Biology, â Department of Nuclear and Particle Physics, Faculty of Physics; and â¡Department of Solid State ...

Nanoscopic electric potential probing: Influence of ...
transistors1,2 and semiconductor lasers.3,4 Previously, poten- tial profiles of active devices were available only through theoretical modeling and simulation, or considerably less di- rectly through complex derivation from the results of scan- ning

Quantum Mechanics of the Electric Dipole Potential A ...
tion, which should be out in front of the solution, can be accounted for in the Î or U ..... If 2d is very large the physical dipole with a bound electron at the positive end is nothing but hydrogen (and a ...... Handbook of Mathematical. Functions.

Electric Field from Multiple Charges Notes Blank.pdf
Electric Field from Multiple Charges Notes Blank.pdf. Electric Field from Multiple Charges Notes Blank.pdf. Open. Extract. Open with. Sign In. Main menu.

Electric Field from Multiple Charges Notes Blank.pdf
There was a problem previewing this document. Retrying... Download. Connect more apps... Try one of the apps below to open or edit this item. Electric Field ...

Electric Field on a Single Charge Notes Blank.pdf
There was a problem previewing this document. Retrying... Download. Connect more apps... Try one of the apps below to open or edit this item. Electric Field on ...