Understanding Electricity Concepts

What is the main difference between AC and DC current?

• AC is safer than DC

• DC is used in household appliances

• AC changes direction periodically; DC flows in one direction.

• AC is always more efficient than DC

Which type of current is typically used in household outlets?

• Pulsating Current

• Direct Current (DC)

• High Voltage Current

• Alternating Current (AC)

What does AC stand for in electrical terms?

• Alternating Charge

• Analog Current

• Alternating Current

• Active Current

What does DC stand for in electrical terms?

• Dynamic Circuit

• Distributed Current

• Dual Charge

• Direct Current

What is one advantage of using AC over DC?

• DC can be easily transformed to different voltage levels.

• AC is safer to use in household appliances than DC.

• AC can be easily transformed to different voltage levels.

• AC is more efficient for long-distance transmission than DC.

What is the primary safety device used to prevent electrical shocks?

• Ground Fault Circuit Interrupter (GFCI)

• Surge Protector

• Voltage Regulator

• Circuit Breaker

What is the purpose of a circuit breaker?

• To provide a constant flow of electricity to appliances.

• To increase the voltage in electrical circuits.

• To protect electrical circuits from overloads and faults.

• To enhance the performance of electrical devices.

What is the role of grounding in electrical safety?

• Grounding increases the risk of electric shock by creating more pathways for current.

• Grounding is used to enhance the performance of electrical devices without safety benefits.

• Grounding only protects against power surges and has no effect on electric shock prevention.

• Grounding prevents electric shock and equipment damage by providing a safe path for fault currents.

What is electromagnetic induction?

• The transfer of heat through a conductor due to electrical resistance.

• The process of creating a magnetic field using electric current.

• Electromagnetic induction is the generation of voltage in a conductor due to a changing magnetic field.

• The phenomenon of light being emitted from a conductor.

Who is credited with the discovery of electromagnetic induction?

• Thomas Edison

• Michael Faraday

• Nikola Tesla

• James Clerk Maxwell