Electrical Circuits

Why is electrical wiring usually made from copper?

• Because copper is shiny

• Because copper conducts electricity

• Because copper is not magnetic

• Because copper insulate electricity

A material that does NOT let electricity pass through it is called ...

• An electrical conductor

• An electrical insulator

• An electrical source

• An electric appliance

What is a circuit that only has ONE path for electricity to flow?

• series circuit

• closed circuit

• parallel circuit

• light bulb

What is a circuit with several paths for electricity to flow?

• conductor

• series circuit

• parallel circuit

• open circuit

What will happen if one light bulb is removed from this circuit?

• The other bulbs will go out.
• The other bulbs will stay on
• The other bulbs will get dimmer.
• The battery will become stronger.

Electricity is the flow of _________.

• Volts

• Neutrons

• Charge

Which of the following devices measures current in an electric circuit?

• an ammeter

• an ohmmeter

• a voltage meter

• a resistor

In a closed circuit, how does battery voltage affect current?

• As voltage increases, current increases.

• As voltage increases, current decreases.

• Voltage has no affect on current.

• If voltage exceeds current, a short circuit circuit will develop.

An electrical circuit is powered by a 1.5-volt battery and contains a light bulb producing 5 Ohms of resistance. There is also another 5 Ohm resistor in the circuit. How many amps of current are in this circuit? HINT: V = IR

• 0.15 amps

• 15.0 amps

• 6.67 amps

• 1.50 amps

How should you put in an Ammeter?

• In Parallel
• In Series