Unit 6

What is a series circuit?

• The transfer of electrons from one object to another
• A circuit with a single path the current follows
• A circuit that goes in multiple directions
• A circuit that takes place in a series of events

How is a parallel circuit different from a series? 

• It has multiple paths for the current to follow and the voltage stays the same in all lights
• It has many branches that get weaker farther from the battery
• They are two circuits running side by side
• They are the same thing

Why are parallel circuits more commonly used in houses?

• Because they are faster than series
• Because if one light has a problem the rest will still work
• Because they are easier for electricians to wire
• Because they use less electricity

What happens when you add a second bulb to a series circuit?

• The first bulb gets brighter
• The second bulb will be as bright as the first because they both get full power
• The circuit will no longer work
• Both bulbs will be half as bright because the voltage is divided by two now

This picture is an example of what kind of circuit?

• Series
• Complete
• Parallel
• Broken

This picture is an example of what kind of circuit?

• Series
• Complete
• Broken
• Parallel

The total resistance in this circuit is 

• 100 ohms
• 450 ohms
• 400 ohms
• 30 ohms

The total current through this circuit is

• 0.02 amps
• 0.09 amps
• 50 amps
• 9 amps

The voltage dropped across the 300 ohm resistor is 

• 6 V
• 9 V
• 2 V
• 30 V

What is the total resistance (RT) across this circuit?

• 3 kΩ
• 10 kΩ
• 13 kΩ
• 16 kΩ