How the current and voltage differ through each resistor

Reference no: EM132232911

Circuit Lab Activity -

1. Before beginning the lab activity briefly explore each of the different tools of the lab. Explain their basic functions in the table below. You may also note that by right clicking on some of the objects you can change the values of voltage etc. Be sure to note this under the "variability" column.

Tool

Wires
Resistor
Battery
Light Bulb
Switch
Ammeter
Voltmeter

2. Define what a series circuit is and list its properties.

3. Construct the following series circuits and answer the associated questions.

Measure the current from the battery and passing through each resistor using the "non-contact ammeter". Measure the voltage passing through each resistor using the voltmeter. Fill in the unknown values below.

R= 12 Ω R= 12 Ω

V= V=

I = I =

Describe the flow of electrons through the wires of this circuit compared to the previous circuit.

R= 12 Ω R= 24 Ω

V= V=

I = I =

How does the voltage across the 12 ohm resistor compare to that from the battery and 24 ohm resistor?

How does the current through the 12 ohm resistor compare to that from the battery and 24 ohm resistor?

4. Define what a parallel circuit is and list its properties.

5. Construct the following parallel circuits and answer the associated questions.

How does the motion of the electrons in the wires from the battery compare to the first series circuit?

How does the motion of the electrons through the resistors compare to those from the battery?

R = 12 Ω R = 12 Ω

V= V=

I = I =

R= 12 Ω R= 24 Ω

V= V=

I = I =

How does the voltage across the 12 ohm resistor compare to that from the battery and across the 24 ohm resistor?

How does the current through the 12 ohm resistor compare to that from the battery and the 24 ohm resistor?

6. Define what a mixed circuit is and list its properties.

7. Construct the following mixed circuit and answer the associated questions.

R= 6 Ω R= 18 Ω R= 12 Ω

V= V= V=

I = I = I =

How does the current and voltage differ through each resistor?

BONUS - Your final task is to design your own electric circuit that meets a specific set of criteria. Use the circuit construction PhET to build each level. Once you have completed the level take a screen shot of your circuit to upload as evidence. Complete as many levels as you can, your score will depend on the highest level that you are able to achieve.

Level 1 - Build a circuit in which a single light bulb emit as much light as possible using 4 batteries.

Level 2 - Modify your level 1 circuit so it has the option to be on or off.

Level 3 - Modify your level 2 circuit so that only 3 bulbs light brightly. These 3 bulbs must also all have the same brightness. (Hint: to have the same brightness they must have the same current).

Level 4 - Modify your level 3 circuit so it has the option to have 2 of the three bright bulbs off while 1 is still on.

Level 5 - Modify your level 4 circuit so it has the option to have all three bright bulbs off also.

Level 6 - Build a circuit that has 3 bulbs which can be turned on or off together. Each bulb must have a different brightness.

Level 7 - Modify your level 6 circuit so that all bulbs may still be turned on or off together but there exists and option that all bulbs will change from lighting with the same brightness to lighting with all different levels of brightness.

Reference no: EM132232911

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