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QUESTION

Here is the simulation link: https://phet.colorado.edu/sims/html/circuit-construction-kit-dc/latest/circuit-construction-kit-dc_en.html Activity 2:

Here is the simulation link:

https://phet.colorado.edu/sims/html/circuit-construction-kit-dc/latest/circuit-construction-kit-dc_en.html

Activity 2: Analyze circuits with resistors connected in series/parallel.

You will explore voltage and current in series and parallel circuits using the simulation.

Using the simulation, build a circuit with two resistors and one battery as shown in the diagram below.

8.

How are the resistors connected in this circuit?

A. in series

B. in parallel

9.

Right click on one of the resistors and set up its resistance to 15 Ω. Set up the resistance of the second resistor to 30 Ω. The total resistance (equivalent resistance) of this circuit is

A. 15 Ω

B. 45 Ω

C. 10 Ω

10.

Use the voltmeter to measure the voltage across the 15 Ω resistor. The voltmeter reads

A. 9 V

B. 3 V

C. 6 V

D. 18 V

11.

Use the voltmeter to measure the voltage across the 30 Ω resistor. The voltmeter reads

A. 9 V

B. 3 V

C. 6 V

D. 18 V

12.

Select the correct statement below

A. The current through resistor 1 is the same as the current through resistor 2 because they are connected in series.

B. The current through resistor 1 is smaller than the current through resistor 2 because resistor 1 has a smaller voltage across it.

C. The current through resistor 1 is smaller than the current through resistor 2 because resistor 1 has a smaller resistance.

13.

Select the correct relationship between voltages across the resistors (V1 and V2) and voltage across the battery (Vbattery):

A. Vbattery = V1 = V2

B. Vbattery = V1 + V2

C. Vbattery = V2 - V1

D. Vbattery = V1 -V 2

14.

A third resistor of 20 Ω is added in series with R1 and R2. What happens to the equivalent resistance of the circuit?

A. it does not change

B. it increases

C. it decreases

15.

What happens to the current through the circuit/battery when the third resistor is added?

A. It does not change.

B. It increases.

C. It decreases.

Thank you!

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