Ohm's Law
The formula for Ohm's Law
V = I x R
The particle that moves
electrons
When you charge a neutral object without touching it
charging by induction
A device that can open or close a circuit.
switch.
Flow of electric charge
Electric current
If you increase resistance, current _____________
decreases
Weather example of static electricity
Lightning
How we determine the charges of two neutral objects after being rubbed together.
Electrostatic series
_____________ converts electricity into other forms of energy we can use
load
Electrons in a circuit are pushed away from a battery's ____________ pole.
negative.
A 120V battery is connected in series with two 10 ohm resistors. What is the current flowing through the circuit?
6 A
A neutral and charged object _____________ each other.
attract.
A more permanent method of charging a neutral object
Charging by conduction
It provides energy, making electrical charges move in the circuit.
Battery or Source of electricity
The measure of energy drop between two points (often over a load) is called _____________________ and is measured in _____________.
potential difference, volts
In a series circuit, there is a battery and two resistors. The 20 V battery provides a total current of 5 A. If R1 is 3 ohms, what is the resistance of R2?
1 ohm
The build up of charge resulting in a transfer of electrons
Electric discharge or shock
How do you get a balloon to stick to a wall?
charge through friction (rub on different material)
charge attracts neutral objects
When both a load and power source are present, a circuit is considered ___________.
Complete
How must an ammeter be attached to a circuit?
15 A of current flow through each of three lightbulbs in a parallel circuit. The total resistance is 10 ohms. What is the potential difference of the battery?
450 V
Materials that allow electric charges to flow through it easily
Electrical conductor
The process in which electrons are given a pathway in order to make a charged object neutral.
Grounding
The purpose of these is to slow the current in a circuit
resistors
What type of circuit has multiple pathways for electrons?
parallel