Circuits🐄 Flashcards
What does a simple circuit contain?🎈
A simple circuit contains…
•A battery
•A bulb📮
What is electrical current?☄️
Electrical current is the flow of charge around a circuit🍊
What is electrical current carried by?🌛
Electrical current is carried by Electrons🍌
What is the name of the instrument used to measure current?🥗
The name of the instrument is an Ammeter🔋
In a simple circuit -if there are 3 ammeters- are the readings on the Ammeters the same or different?💧
In a simple circuit the readings on the Ammeters will be the same🎽
In a parallel circuit -with three Ammeters- are the readings the same or different?👖
In a parallel circuit the readings of the second and third Ammeters will add up to the first ammeter🏙
As electrons go around the circuit what do they do?☂️
As electrons go around a circuit they…
•Pick up electrical energy from the battery
•Lose electrical energy from across a bulb🤰🏽
What is voltage?🎟
Voltage is the energy lost or gained by the electrons -between any two points in a circuit.🐖
Voltage across battery (1)
=Voltage across bulb one (2)
+Voltage across bulb two (3)
Label this🐙
1) Energy gained by electrons
2) Energy lost by electrons
3) Energy lost by electrons
Eg- Voltage across battery=
3.12v + 2.88v =6v🌺
The VI graph for the resistor is what?🐞
The VI graph for the resistor is a straight line👠
The VI graph for the bulb is what?🥐
The VI graph for the bulb is a curve🍍
The gradient of the resistor graph is _____ but the gradient of the bulb graph _____ as the current ______🌙
The gradient of the resistor graph is constant but the gradient of the bulb graph increases as the current increases🌼
We can calculate resistance by using what formula?🍀
R= V
-
I
R= ?
V= ?
I= ?
🌎
R= Ohms
V= Volts
I= Amps
🙅♂️
