Experiment 1: Resistors in Series and Parallel Procedure Create the snap circuit

Question

Experiment 1: Resistors in Series and Parallel

Procedure

Create the snap circuit depicted in Figure 5 using both the 1 k and the 100 resistors, along with an LED. Note the brightness of the LED using this configuration.

Connect the jumper wire to the point A marked in the photo. Note what happens to the LED when you connect and disconnect this wire.

Reconfigure the circuit to that pictured in Figure 6. Turn on the switch and note the brightness of the LED.

Now connect the jumper to the terminal marked B. Do this several times, observing any differences in the LED brightness.

Questions:

1)How does the brightness of the LED change when the jumper is connected in Step 2?

2) How does the brightness of the LED change when the jumper is connected in second circuit (Step 3)?

3) Is the difference in net resistance in each case consistent with the brightness of the LED?

Experiment 1: Resistors in Series and Parallel

Procedure

Create the snap circuit depicted in Figure 5 using both the 1 k and the 100 resistors, along with an LED. Note the brightness of the LED using this configuration.

Connect the jumper wire to the point A marked in the photo. Note what happens to the LED when you connect and disconnect this wire.

Reconfigure the circuit to that pictured in Figure 6. Turn on the switch and note the brightness of the LED.

Now connect the jumper to the terminal marked B. Do this several times, observing any differences in the LED brightness.

Questions:

Explanation / Answer

3) Yes. The difference in net resistance in step 2 and 3 is consistent with the brightness of the LED.

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