Series and parallel circuits

State which one of these circuit diagrams shows a series circuit.

• 
• 

Specify when the current is the same through circuit components in a series circuit.

• When components have different resistance

• When all components have same resistance

• Current is always the same in series circuits

Describe when the voltage is the same across the circuit components in a series circuit.

• When the components have different resistance

• When all the components have the same resistance

A series circuit has two light bulbs in it. Light bulb A has a greater resistance than light bulb Describe the current moving through the light bulbs.

• The current through light bulb A is less than the current through the light bulb B

• The current through light bulb A is same as the current through the light bulb B

• The current through light bulb A is greater than the current through the light bulb B

A series circuit has two light bulbs in it. Light bulb A has a greater resistance than light bulb B.

Describe the voltage across the light bulbs.

• The voltage across light bulb A is less than the voltage across light bulb B

• The voltage across light bulb A is greater than the voltage across light bulb B

• The voltage across light bulb A is same as the voltage across light bulb B

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

greater than

the same as

less than

The two light bulbs pictured above in the circuit diagram have the same resistance.

This means that the voltage across light bulb A is____________ the voltage across light bulb B.

A series circuit has 2 light bulbs in it. Each light bulb has the same resistance. Identify the voltage across each light bulb if the battery supplies 12 V

.

• 12 V

• 8 V

• 6 V

• 4 V

A series circuit has 3 light bulbs in it. Each light bulb has the same resistance.

Identify the voltage across each light bulb if the battery supplies 12 V

.

• 4 V

• 6 V

• 8 V

• 12 V

State which branch has a larger current flowing through it.

• The bottom branch

• The top branch

n the parallel circuit diagram below, the top branch has 2Ω

of resistance and the bottom branch has 4Ω

of resistance. State which branch has a larger voltage across it.

• The top branch

• The bottom branch

• Each branch has the same voltage across it