Question
An experiment was set up with the circuit diagram shown in Figure 21.61. Assume $R_1 = 10 \textrm{ }\Omega$, $R_2 = R_3 = 5 \textrm{ }\Omega$, $r = 0 \textrm{ }\Omega$, and $E = 6\textrm{ V}$.
1. One of the steps to examine the set-up is to test points with the same potential. Which of the following points can be tested?
1. Points b, c and d.
2. Points d, e and f.
3. Points f, h and j.
4. Points a, h and i.
2. At which three points should the currents be measured so that Kirchhoff’s junction rule can be directly confirmed?
1. Points b, c and d.
2. Points d, e and f.
3. Points f, h and j.
4. Points a, h and i.
3. If the current in the branch with the voltage source is upward and currents in the other two branches are downward, i.e. Ia = Ii + Ic, identify which of the following can be true? Select two answers.
1. li = Ij - If
2. Ie = Ih - Ii
3. Ic = Ij - Ia
4. Id = Ih - Ij
4. The measurements reveal that the current through R1 is 0.5 A and R3 is 0.6 A. Based on your knowledge of Kirchoff’s laws, confirm which of the following statements are true.
1. The measured current for R1 is correct but for R3 is incorrect.
2. The measured current for R3 is correct but for R1 is incorrect.
3. Both the measured currents are correct.
4. Both the measured currents are incorrect.
5. The graph shown in the following Figure 21.62 is the energy dissipated at R1 as a function of time. Which of the following among Figures 21.63 and Figure 21.65 shows the graph for energy dissipated at R2 as a function of time?
1. (c)
2. (c)
3. (b) and (d)
4. (b)
5. (c)

# OpenStax College Physics for AP® Courses, Chapter 21, Problem 8 (Test Prep for AP® Courses)

In order to watch this solution you need to have a subscription.