Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website. See our User Agreement and Privacy Policy.

Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website. See our Privacy Policy and User Agreement for details.

Like this presentation? Why not share!

- Conductors by Kushagra Ganeriwal 250 views
- DIELECTRICS PPT by Vaishnavi Bathina 15056 views
- Theory of simple liquids fourth edi... by Edward Mccarthy 53 views
- The duality of the light by minervaporcelgiraut 660 views
- Construction of mica capacitor and ... by elprocus 1600 views
- Theory of electric polarization sec... by Edward Mccarthy 87 views

No Downloads

Total views

2,039

On SlideShare

0

From Embeds

0

Number of Embeds

3

Shares

0

Downloads

0

Comments

0

Likes

2

No embeds

No notes for slide

- 1. Jose & Brittany<br />Conductors, Capacitors, Dielectrics<br />
- 2.
- 3. Main Concepts of Electric Forces and Fields<br />Electric forces and electric fields are vectors, electric potentials are scalars<br />Electric fields point in the direction of the force on a positive test charge<br />Capacitance is the ratio of charge to the potential for a given conductor<br />The capacitance for a parallel-plate capacitor depends on the surface area of each plate, the plate seperation and the permittivity or dielectric constant<br />The capacitance of a system of parallel plates depends only on the physical characteristics of the capacitor (i.e. Surface area, plate seperation, dielectric material)<br />
- 4.
- 5. Important Vocabulary<br />Electrostatics – is the study of interaction between electric charges which are not moving <br />Conductors – are materials in which the electrons are free to move. Some examples such as silver, copper, gold, and mercury as metals<br />Electric Fields – exist in the space surrounding a charged particle or object<br />Capacitor- stores electric charge and consists of two conductors seperated by an insulator known as a dielectric<br />Dielectric – is an electrical insulator that can be polarized by an applied electrical field<br />Electric Current – is the rate of flow of electric charge. Used in Amperes (I) where 1 Ampere is 1 coulumb/second<br />Electrical Resistance refers to the opposition offered by a substance to the flow of electrical current. Unit of resistance is Ohm<br />
- 6.
- 7. Important Formulas<br />Electric Charge: q = n e ; where e = 1.6 X 10-19 C; (q) is the total charge on an object, (e) is the fundmental unit of charge, (n) is the number of total charges<br />Coulomb’s Law: F = k Q1 Q2/r2 ; where k = 9 X 109 N m2 /C2 ; (F) is the two charges exerted a force (Q) is the magnitude of the charge while (r) is the square of the distance between centers<br />
- 8. Important Formulas # 2<br />Electric Field: E = F/q or F = q E ; (E) is the magnitude of electric field, (F) force exerted om test charges, (q) is the magnittude of the charge of test particle<br />Electric Field to a Point Charge: E = k Q /r2 ; (E) is the magnitude of electric field, (F) force exerted om test charges, and (r) is the distance from the charge<br />
- 9. Important Formulas # 3<br />Electric Potential: V = PEa / q ; (PEa) is the potential energy, (q) per unit charge (V) is the electric potential at point<br />Capacitance: C = Q/V ; (C) is the ratio of the charge stored, (Q) is the potential difference, (V) is between the conducting surfaces <br />Electric Current: I = Q/t ; (I) is the electric current in Amperes<br />Electrical Resistance: R = p L/A ; (R) is the resistance of metal wire, (L) length, (A) cross-sectional area, (p) is the resistivity<br />Ohm’s Law: I = V/R or V = IR ; (I) stands for electric current and (V) stands for voltage of current and (R) stands for the resisitivity<br />
- 10. Main Concepts: Electric Circuits <br />An electrical network with a closed path<br />Measured in terms of the number of charge carriers, or<br />Particles containing a unit electric charge<br />The current flows through a resistance<br />
- 11.
- 12. Important Vocabulary<br />Electric circuit: a continuous closed path in with electric charges can flow<br />Electric current: flow of charged particles; conventionally, flow of positive charges<br />Electric power: the rate at which work is done or energy is dissipated through a resistor<br />Electrical resistance: the ratio of the voltage across a device to the current running through it<br />Capacitor: two oppositely charged conductors used to store charge and energy in an electric field between them<br />Resistor: device designed to have a specific resistance<br />Resistivity: the constant which relates the resistance of a resistor to its length and cross sectional area<br />
- 13. Vocabulary Continued<br />Ammeter: device used to measure electrical current<br />Ampere: unit of electrical current equal to one coulomb per second<br />Battery: device that converts chemical energy into electrical energy, creating a potential difference<br />Voltage: the potential difference between the positive and negative terminals of a battery<br />
- 14. Formulas<br />
- 15. Ohm’s Law<br />The ratio of voltage to current in a circuit is a constant called resistance<br />Measured in ohm: one volt per ampere<br />

No public clipboards found for this slide

×
### Save the most important slides with Clipping

Clipping is a handy way to collect and organize the most important slides from a presentation. You can keep your great finds in clipboards organized around topics.

Be the first to comment