Electricity Flashcard

Front

What is a material in which electrons are able to move easily?

Back

Conductor: A substance that allows the flow of electric charges (electrons) with minimal resistance.

Front

What is a material in which electrons are not able to move easily?

Back

Insulator: A substance that resists the flow of electric charges, preventing current from passing through.

Front

What is the formula to calculate current (I) using voltage (V) and resistance (R)?

Back

I = V / R

Front

What is the unit of electric current?

Back

Ampere (A): The unit of measurement for electric current.

Front

What type of current flows in only one direction?

Back

Direct Current (DC): Electric current that flows consistently in a single direction.

Front

What type of current changes direction periodically?

Back

Alternating Current (AC): Electric current that reverses direction at regular intervals.

Front

What is the flow/movement of electric charges called?

Back

Current: The rate at which electric charges flow through a conductor.

Front

What is the unit of measurement for voltage?

Back

Volt (V): The unit of measurement for electric potential difference.

Front

What is resistance in an electrical circuit?

Back

Resistance: A measure of the opposition to the flow of electric current, measured in Ohms (Ω).

Front

What is Ohm's Law?

Back

Ohm's Law states that V = I × R, where V is voltage, I is current, and R is resistance.