Electricity

Front

What is an insulator?

Back

An insulator is a material that does not allow electric current to flow through it easily. Examples include rubber, glass, and plastic.

Front

What is a conductor?

Back

A conductor is a material that allows electric current to flow through it easily. Examples include metals like copper and aluminum.

Front

What type of current is found in a battery?

Back

Direct current (DC) is the type of current found in a battery.

Front

What does DC stand for?

Back

DC stands for Direct Current.

Front

What does AC stand for?

Back

AC stands for Alternating Current.

Front

What is the difference between AC and DC?

Back

AC (Alternating Current) changes direction periodically, while DC (Direct Current) flows in one direction only.

Front

What is lightning?

Back

Lightning is a natural electrical discharge of very short duration and high voltage between a cloud and the ground, or within a cloud.

Front

What is the role of saltwater in electricity?

Back

Saltwater is a good conductor of electricity due to the presence of ions that facilitate the flow of electric current.

Front

What is the significance of grounding in electrical systems?

Back

Grounding provides a safe path for excess electricity to flow into the earth, preventing electrical shock and equipment damage.

Front

What is Ohm's Law?

Back

Ohm's Law states that the current (I) through a conductor between two points is directly proportional to the voltage (V) across the two points and inversely proportional to the resistance (R). It is expressed as V = IR.