Electricity Flashcards
What is Gradient?
The difference in concentration of something.
What is current?
Continuous flow of electrons measured in amps.
What is voltage?
The difference in electrical circuit measured in volts also called potential difference.
What is resistance?
Opposition to the flow of the current measured in ohms.
What is Ohm’s law?
V=I•R
- V= voltage
- I= current
- R= resistance
What are the three types of circuits?
- Parallel
- Series
- Complex
What is a series circuit?
- A circuit with only one continuous path for electricity to travel
- Formula: Rt=R1+R2+R3+R4……
What is a parallel circuit?
- A circuit with multiple paths for electricity to travel.
- Formula: 1/((1/R1)+(1/R2)+(1/R3)….)
How does the diameter of a wire affect the resistance?
As the wire diameter increases the resistance decreases.
How does the length of the wire affect the resistance?
As the length of the wire increases resistance increases.
How does the temperature of wire affect the resistance?
As the temperature increases resistance increases.
What are the rules for complex circuits?
- In a series circuit the current is constant.
2. In a parallel circuit voltage is constant
What is a complex circuit?
Circuit that combines parallel and series circuits into one circuit.
What is electricity?
The flow of electrons from place to place.
Who is Luigi Galvani?
A scientist who is dissecting a frog and whenever he touched his brass hook to his iron table the salty frog juice😷 caused electrical spark.
