Circuits

The picture shows an electrical circuit. This circuit is a series circuit because: 

• It has 3 light bulbs.
• The same current flows through all three light bulbs.
• It uses a single battery.
• The electrical current is divided between the three light bulbs.

The total resistance in this circuit is 

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

Tags

CCSS.7.NS.A.1D

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

• 3 kΩ
• 10 kΩ
• 13 kΩ
• 16 kΩ

As resistors are added in series to a circuit, the total resistance will...

• increase
• decrease
• stay the same

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

As the resistance of a circuit increases, the current will...

• increase
• decrease
• stay the same

The current going through the 45 ohm resistor is 

• 0.05 amps
• 0.2 amps
• 0.1 amps
• 5 amps

The total current going through the battery of this circuit is

• 0.35 amps
• 0.0286 amps
• 0 amps
• 9 amps

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.