Flashcards in RT 205 Electricity Deck (28):

1

## Formula for Ohm's Law

###
V=IR

V= Potential Difference (Volts)

I= Current (Amperes)

R= Resistance (Ohms)

2

## Formula for Power Law

###
P=IV

P= Power (Watts)

I= Current (Amperes)

V= Voltage (volts)

3

## The study of the distribution of fixed charges (electrons) that are not at rest

### Electrostatics

4

## Electron charges being added and subtracted from an object

### Electrification

5

## First Law of electrostatics

### Repulsion-Attraction - Like charges repel, negative charges attract

6

## Second Law of electrostatics

### Inverse square law - Force between two charges directly proportional to product of their magnitudes and inversely proportional to square of distance between them.

7

## Third Law of electrostatics

### Distribution - Charges reside on the external surface of conductors

8

## Fourth Law of electrostatics

### Concentration - The greatest concentration of charges will gather at sharpest area of curvature

9

## Fifth Law of electrostatics

### Movement - Only negative charges move along solid conductors.

10

## Electrical force is proportional to the product of the electrical charge and inversely proportional to the square of the distance.

###
Coulomb's Law

11

## Formula for Coulomb's Law

###
F= k (q1 x q2/d^2

F= Force

k= 9.00 x 10^9 Nm^2/C^2

q1= electrified charge of object 1

q2= electrified charge of object 2

d^2= distance between the two objects

12

## The fundamental charge is the electrical chare on an charge on an electron and has a magnitude of ________________.

### 1.6 x 10^-19 C

13

## A coulomb is the charge resulting from the transfer of ______________, which is the charged carried by an electron.

### 6.24 x 10^18

14

## Have a small fraction of their electrons, which are not bound to atoms, which move freely around.

### Conductor

15

## A substance, usually a solid chemical element or compound, that can conduct electricity under some condition, but not others.

### Semiconductor

16

## Substances that inhibit the flow of electrons

### Insulators

17

## Conventional Current

### Electrons move from areas of high to low concentration

18

## Conventional Electric Flow

### Going from a positive to a negative pole

19

## Conventional Electron Flow

### Going from negative to a positive pole

20

## AC Sine wave-

### Electrons flow in one direction and than the other.

21

## DC Sine wave -

### Electrons travel in one direction

22

## 1 Amp = ___________

### 1 Amp = 1 Coulomb/sec

23

## AC Current = ____________ or ____________

### AC Current = 60 cycles/sec = 60 Hz

24

## Voltmeter

### Measures the voltage across a circuit

25

## Ammeter

### Measures current

26

## Ohmmeter

### Measures resistance of one resistor in a circuit

27

## 1 Voltage = _____________

### 1 Voltage = 1 J/C

28