Parallel Circuits

This is an example of a ______ circuit

• Series

• Parallel

• Open

• Dihexihedral

Does this statement best describe a parallel or a series circuit.
 
When more light bulbs are added they all remain bright.

• Parallel circuit

• Series circuit

What is a benefit of using a parallel circuit?  

• It gets confusing.

• There are no problems.

• If one light goes out, it does not affect the others. 

• If one light goes out, they all go out. 

Does this circuit have one or two paths?

• one path

• two paths

The two light bulbs pictured above have the same resistance.

This means that the current through light bulb A is-------------the current through light bulb B.

Use your knowledge of parallel circuits to complete the following sentences:

the same as

less than

greater than

In the diagram above, light bulb A has a greater resistance than light bulb B.

This means that the current through light bulb A is------------the current through light bulb B.

Use your knowledge of parallel circuits to complete the following sentences:

the same as

less than

greater than

In the diagram below, light bulb A has a lower resistance than light bulb B.

This means that the current through light bulb A is-----------the current through light bulb B.

In the circuit below, the battery supplies 4 V to the light bulbs. This is a parallel circuit with two branches. Identify the voltage across each of the light bulbs.

• 2 V

• 1 V

• 6 V

• 4 V

In the circuit below, the battery supplies 18 V

to the light bulbs. This is a parallel circuit with three branches.

Identify the voltage across each of the light bulbs.

• 9 V

• 18 V

• 6 V

• 21 V

State which branch has a larger current flowing through it.

• The bottom branch

• The top branch