Chapter 42- Static And Current Electricty Flashcards Preview

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Flashcards in Chapter 42- Static And Current Electricty Deck (11)
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1

Conductors

Materials in which charge can flow

2

Insulators

Materials in which charge cannot flow

3

Current

-symbol ( I )
-measured in ( A ) (ampere) (amp)
-electrons move from the negative terminal to the positive terminal

4

Voltage

-Sign ( V )
-measured in ( V ) ( the Volt )
-the amount of electrons used to go through a circuit

5

Difference between current and voltage

-voltage : amount of electrons needed to get through the circuit

-current: the movement of electrons from the negative to positive terminals of a battery

6

Resistance

-sign ( R )
-measured in the ( error 404: symbol not found ) (Ohm)
-the opposition of flow along a wire
Eg. Copper has a low resistance, silver high resistance

7

Ohm laws

-voltage is directly proportional to current

8

Triangle for calculating variables in electricity

V
--------
I X R

9

Bulbs in series

-if one goes the whole circuit will be stopped

10

Bulbs in parallel

Is one goes the other will still shine bright like a diamond
OOOHAAAAAARRAA

11

To become electronically charged ...

Remove electrons-> becomes positively charged
Add electrons -> becomes negatively charged