The resistances in Figure (a) and Figure (b) are all 7.3 ohms, and the batteries

Question

The resistances in Figure (a) and Figure (b) are all 7.3 ohms, and the batteries are ideal 31 V batteries. (a) When switch S in Figure (a) below is closed, what is the change in the electric potential V1 across resistor 1, or does V1 remain the same (enter "0")? (b) When switch S in Figure (b) below is closed, what is the change in V1 across resistor 1, or does V1 remain the same (enter "0")? Here is the link to the figure: http://edugen.wileyplus.com/edugen/courses/crs7165/art/qb/qu/c27/pict_27_30.gif

Explanation / Answer

ohms law and kirchoffs law can be used

figure is not clear

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