Parallel Circuits - https://phet.colorado.edu/en/simulation/legacy/circuit-construction-kit-dc

1. Using batteries and bulbs (as resistors) set up the following circuit:

2. Properly place an ammeter into the circuit and measure the total current in amps (A):

Total Current =

3. Properly place an ammeter into the circuit and measure the current through in each of the bulbs:

Current in bulb 1 =

Current in bulb 2 =

4. Draw the three circuits you just made to measure the current. Using symbols to show how you connected the ammeter:

Disconnect the ammeter and re-set up the circuit.5. Measure the voltage across each bulb:

V1 = V V2 = V

6. Using the equation calculate the resistance of each bulb.

7. What is the total resistance of the two bulbs together?Rtotal =

Parallel Circuits - https://phet.colorado.edu/en/simulation/legacy/circuit-construction-kit-dc

8. Using your measured values for current (I) and total resistance (R) confirm Ohm’s Law: V=IR and predict what the total voltage is.

VT =

9. Measure the actual total voltage across the all the batteries?Voltage =

The measure voltage will likely be different because your measured values of current and resistance contain error.