Electronics

Which best describes a series circuit? 

• It has two light bulbs. 
• The same current flows through both light bulbs. 
• It uses a single battery.
• The current is divided between the light bulbs. 

What is one problem with using a series circuit? 

• It has a lot of series. 
• If one goes down, they all go down! 
• It doesn't work properly.
• There are no problems. 

Total resistance in a series circuit

• R_{t =} R₁ + R₂ + R₃ ...
• 1/R_{t =} 1/R₁ + 1/R_{2 ...}
• R_t = R₁ X R₂ / R₁ + R_{2 ...}
• R_t = R_N / R_V 

what is this symbol for?

• light bulb
• switch
• battery
• resistor

In order for a circuit to work you need to have

• A voltage source
• A complete pathway with no breaks in the circuit
• A resistor
• A voltage source and a complete pathway with no breaks in the circuit

Pick the correct sentence.

• This circuit will work because it is a closed circuit.
• Energy will freely flow in this circuit.
• This circuit will not work because there is no energy source.
• This circuit will not work because there is no switch.

This is an example of a _______ circuit

• open
• series
• parallel
• square

In a series circuit which of the following is the same  throughout the circuit

• Resistance
• Voltage
• Current
• None of the above

In a series circuit which of the following will vary based on the resistor

• Resistance
• Voltage
• Current
• None of the above

A circuit with 3 resistors, 10 Ohms, 30 Ohms and 20 Ohms are in series. What is the total resistance

• 30 Ohms

• 50 Ohms

• 60 Ohms

• 100 Ohms