Potential and field
This presentation is the property of its rightful owner.
Sponsored Links
1 / 40

Potential and Field PowerPoint PPT Presentation


  • 66 Views
  • Uploaded on
  • Presentation posted in: General

Potential and Field. Connection between Potential and Fields Electric Field around a Conductor EMF or Batteries. Reading Questions. What quantity is represented by the symbol ?. 1. Electronic potential 2. Excitation potential 3. Electromotive force 4. Electric stopping power

Download Presentation

Potential and Field

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Potential and field

Potential and Field

Connection between Potential and Fields

Electric Field around a Conductor

EMF or Batteries


Reading questions

Reading Questions

What quantity is represented by the symbol ?

1. Electronic potential

2. Excitation potential

3. Electromotive force

4. Electric stopping power

5. Exosphericity


Reading questions1

Reading Questions

What quantity is represented by the symbol ?

1. Electronic potential

2. Excitation potential

3. Electromotive force

4. Electric stopping power

5. Exosphericity


Reading questions2

Reading Questions

The electric field

1. is always perpendicular to an equipotential surface.

2. is always tangent to an equipotential surface.

3. always bisects an equipotential surface.

4. makes an angle to an equipotential surface that depends on the amount of charge.


Reading questions3

Reading Questions

The electric field

1. is always perpendicular to an equipotential surface.

2. is always tangent to an equipotential surface.

3. always bisects an equipotential surface.

4. makes an angle to an equipotential surface that depends on the amount of charge.


Reading questions4

Reading Questions

The relationship ∆V=IR is called

1. Faraday’s law.

2. Ampere’s law.

3. Ohm’s law.

4. Maxwell’s equation.

5. No name was given in this chapter.


Reading questions5

Reading Questions

The relationship ∆V=IR is called

1. Faraday’s law.

2. Ampere’s law.

3. Ohm’s law.

4. Maxwell’s equation.

5. No name was given in this chapter.


Electric field and potential

Energy concept

Electric Field and Potential

Force concept

Acts locally

Everywhere in space


Connecting potential and field

Hand waving argument using a constant electric field

Connecting Potential and Field

Recall from the last lecture we found

From Calculus III we find


Electric field and potential1

Energy concept

Electric Field and Potential

Force concept

Acts locally

Everywhere in space


Potential from electric field

  • TACTICS BOX 30.1 ‑Finding the potential difference from the electric field

  • 1)Draw a picture and identify the two points between which you wish to find the potential. Call them positions i and f.

  • If you need to assign a specific value of V to a point in space, choose position f to be the zero point of the potential, usually at infinity.

  • Establish a coordinate axis from i to f along which you already know or can easily determine the electric field component

  • 4)Carry out the integral of Equation 30.3 to find the potential difference

Potential from Electric Field

Calculating the potential from the electric field.


Electric field from potential

Or for one dimension

Electric Field from Potential

Recall


Electric field and potential2

Electric Field and Potential


Electric field from potential1

Electric Field from Potential


Electric field and potential3

Electric Field and Potential

Kirchhoff’s Loop Law

The sum of the voltages aroung a closed path equal zero.


Student workbook

Student Workbook


Student workbook1

Student Workbook

You should do this one.


Student workbook2

Vector

so

-

-

Student Workbook

You should do this one.


Student workbook3

Student Workbook


Student workbook4

Student Workbook


Student workbook5

Student Workbook


Student workbook6

Student Workbook


Class question

Class Question

Which potential-energy graph describes this electric field?

1. a

2. b

3. c

4. d

5. e


Class question1

Class Question

Which potential-energy graph describes this electric field?

1. a

2. b

3. c

4. d

5. e


Class question2

Which set of equipotential surfaces matches this electric field?

(1)

(2)

(3)

(5)

(4)

Class Question


Class question3

Which set of equipotential surfaces matches this electric field?

(1)

(2)

(3)

(5)

(4)

Class Question


Electric field around conductors

Gaussian surface

Electric Field around Conductors

+

+


Electric field and potential4

Electric Field and Potential


Electric field and potential5

Electric Field and Potential


Student workbook7

Student Workbook


Student workbook8

Student Workbook


Student workbook9

Student Workbook


Class question4

Class Question

Three charged, metal spheres of different radii are connected by a thin metal wire. The potential and electric field at the surface of each sphere are V and E. Which of the following is true?

1. V1 = V2 = V3 and E1 = E2 = E3

2. V1 = V2 = V3 and E1 > E2 > E3

3. V1 > V2 > V3 and E1 = E2 = E3

4. V1 > V2 > V3 and E1 > E2 > E3

5. V3 > V2 > V1 and E1 = E2 = E3


Class question5

Class Question

Three charged, metal spheres of different radii are connected by a thin metal wire. The potential and electric field at the surface of each sphere are V and E. Which of the following is true?

1. V1 = V2 = V3 and E1 = E2 = E3

2. V1 = V2 = V3 and E1 > E2 > E3

3. V1 > V2 > V3 and E1 = E2 = E3

4. V1 > V2 > V3 and E1 > E2 > E3

5. V3 > V2 > V1 and E1 = E2 = E3


Emf or battery

EMF or Battery


Emf or battery1

EMF or Battery


Student workbook10

Student Workbook

You should do this one.


Student workbook11

Student Workbook


Class question6

Class Question

A wire connects the positive and negative terminals of a battery. Two identical wires connect the positive and negative terminals of an identical battery. Rank in order, from largest to smallest, the currents Ia to Id at points a to d.

1. Ia =Ib =Ic =Id

2. Ia =Ib >Ic =Id

3.Ic =Id >Ia =Ib

4. Ic =Id >Ia >Ib

5. Ia >Ib >Ic =Id


Class question7

Class Question

A wire connects the positive and negative terminals of a battery. Two identical wires connect the positive and negative terminals of an identical battery. Rank in order, from largest to smallest, the currents Ia to Id at points a to d.

1. Ia =Ib =Ic =Id

2. Ia =Ib >Ic =Id

3.Ic =Id >Ia =Ib

4. Ic =Id >Ia >Ib

5. Ia >Ib >Ic =Id


  • Login