Electricity Flashcards
+| |-
Image of Cell
+|…….|-
Battery
—0\ 0—
Open switch
….o_o….
Closed switch
…..X……
Bulb or lamp
……M…..
Motor
…..A….
Ammeter
…..V…..
Voltmeter
……{====}……
Resistor
Current
Is the flow of charge around a circuit
Electrons
Carry electrical energy from the cell or battery
what is current measured in
Amperes or amps
If one bulb brakes in series circuit what happens to the other bulbs
All other bulbs will not work
What happens when a bulb brakes in a parallel circuit
All the other lights will remain on
Why when a bulb brakes in a parallel circuit all the other lights will remain on
Because the current can move in a different path
How does a magnet work?
The molecules in a magnet are arranged so that their electrons spin in the same direction.
Why are not all objects magnetic?
The electrons in most objects spin in random directions, and their magnetic forces cancel each other out.
What is a domain ?
A domain is a region inside of a material where groups of magnetic moments naturally align in the same direction.