Flashcards in Current Electricity Deck (21):

1

## __________ are literal representations of circuits

### Pictorial Circuit Diagrams

2

## _________ are the standard format to represent circuits

### Schematic Circuit Diagram

3

## Which way do electrons flow?

### Negative - positive

4

## Which way does current flow?

### Positive - Negative

5

## What is the electric potential difference?

### Electrons accumulate at one terminal, making it negative and the other positive. The electrons are energized to go to the positive terminal; difference between anode and cathode

6

## Is the anode positive or negative?

### Positive

7

## Is that cathode positive or negative?

### Negative

8

## What is resistance?

### Anything you add to a circuit that hinders the motion of electrons (motor, light bulb)

9

## Resistance depends on which 4 factors?

### Type of material, length, diameter, temperature

10

## What is the formula for resistance?

### R = V/I

11

## What is the formula for density?

### D = m/V

12

## What is the formula for current?

### I = Q/t

13

## What is the formula for potential different / voltage?

### V = E/Q

14

## 1 electron is _________ coulombs.

### 1 electron = 1.602 x 10^-19 coulombs

15

## 1 coulomb is _________ electrons

### 1 coulomb = 6.25 x 10^18 electrons

16

## What are the formulas for calculating total resistance?

###
Series = R1 + R2 + R3...

1/ Parallel = 1/R1 + 1/R2 + 1/R3...

17

## What is the symbol for charge?

### Q

18

## What is the symbol for current?

### I

19

## What is the unit for energy?

### Joules

20

## What is the unit for charge?

### Coulombs

21