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 has more than one path to flow through

This circuit won't work. What essential part is missing from this circuit?

• resistance
• source of electric current
• conductor
• ammeter

this is the symbol for a _____?

• switch
• light 
• battery
• wires

A 2.0-ohm resistor and a 4.0-ohm resistor are connected in series with a 12-volt battery. If the current through the 2.0-ohm resistor is 2.0 amperes, the current through the 4.0-ohm resistor is

• 1.0 A

• 2.0 A

• 3.0 A

• 4.0 A

The voltage dropped across the 300 ohm resistor is

• 6 V

• 9 V

• 2 V

• 30 V

The total current through this circuit is

• 0.02 amps

• 0.09 amps

• 50 amps

• 9 amps

What is an electrical circuit?

• lets you turn the energy on and off
• a closed path where where electricity flows
• stop electricity from flowing through

What kind of circuit is this?

• Series
• Consecutive
• Parallel
• Training

Which of the following can work as an energy source?

• Battery
  
• Light bulb
• Wire
  
• All of them

Which is NOT true of a series circuit

• One light bulb can be broken and other lights will still work.
• All loads are a single loop
• Adding more loads will lessen the current in the loop