Electricity and Resistance Quiz

Which formula is used to calculate resistance?

• Voltage = Current x Resistance

• Resistance = Voltage / Current

• Current = Voltage / Resistance

• Power = Voltage x Current

What does the document suggest using to explain resistance?

• A voltmeter

• A model or analogy

• A resistor

• A battery

Who is the person mentioned in the document related to resistance?

• Isaac Newton

• Albert Einstein

• Georg Simon Ohm

• Nikola Tesla

Which of the following is NOT listed as a keyword in the document?

• Resistance

• Ohms

• Conductor

• Voltage

What is the difference between current, voltage, and resistance?

• Current is the flow of electric charge, voltage is the potential difference, and resistance is the opposition to the flow of current.

• Current is the potential difference, voltage is the flow of electric charge, and resistance is the opposition to the flow of current.

• Current is the opposition to the flow of current, voltage is the flow of electric charge, and resistance is the potential difference.

• Current is the potential difference, voltage is the opposition to the flow of current, and resistance is the flow of electric charge.

Who is often mistakenly credited with inventing the lightbulb?

• Nikola Tesla

• Alexander Graham Bell

• Thomas Edison

• James Watt

What was Thomas Edison's actual contribution to the development of the lightbulb?

• He invented the first lightbulb.

• He invented the first lightbulb with a filament that didn’t burn out when a current flowed in it.

• He invented the first electric generator.

• He invented the first battery.

A parallel circuit...

• ...supplies energy

• ...has several paths the current can take

• ...is a single loop of conductors

• ...measures potential difference

An ammeter measures...

• ...current

• ...potential difference

• ...energy

• ...resistance

A series circuit...

• ...supplies energy

• ...has several paths the current can take

• ...is a single loop of conductors

• ...measures potential difference