Electrical Currents and Circuits

What is the primary material used in electrical circuits for the flow of electrons?

• Copper

• Silicon

• Aluminum

• Gold

Tags

NGSS.HS-PS3-5

What does a higher voltage in a circuit imply?

• Lower electron flow

• Higher resistance

• Higher electron flow

• Decreased current

Tags

NGSS.HS-PS3-5

What is the unit used to measure electrical current?

• Volt

• Ampere

• Ohm

• Watt

What type of current is used primarily in household wiring?

• Direct Current (DC)

• Alternating Current (AC)

• Static Current

• Conductive Current

Which type of current flows in one direction only?

• DC

• Multi-directional Current

• Bidirectional Current

• AC

What device is commonly used to measure the flow of current in a circuit?

• Voltmeter

• Oscilloscope

• Multimeter

• Capacitor

What does an ammeter measure?

• Voltage

• Current

• Resistance

• Power

What happens when the current exceeds the capacity of a circuit?

• The circuit becomes more efficient

• The circuit breaks or burns out

• The circuit cools down

• The circuit expands

What is the purpose of a fuse in an electrical circuit?

• Store electrical energy

• Break the circuit when overloaded

• Decrease voltage

• Increase current flow

How does a circuit breaker protect an electrical circuit?

• By reducing electron flow

• By adding resistance

• By increasing voltage

• By breaking the circuit when overloaded