Electrical Circuits Flashcards
What is and Electrical Current?
An electrical current is the flow of charge around a circuit.
What charge are electrons?
Electrons are negative charge.
What is the total current in a circuit?
the total current in a circuit is never used up which means it is always the same.
What is resistance in a circuit?
Resistance is anything that slows down the flow of current.
How do you calculate resistance?
Potential difference divided by current
If the resistance is high what is the current?
Small
What are conductors?
Conductors are materials that allow electricity to easily pass through them.
What is an example of a conductor?
Metals
What are insulators?
Insulators are materials that don’t allow electricity to easily pass through them.
What is an example of an Insulator?
Wood
What makes a good conductor?
A good conductor is when the resistance is low.
