Kirchhoff's Loop Rule Video Lessons

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Problem: In the circuit shown in the figure (Figure 1) all meters are idealized and the batteries have no appreciate interal resistance.Part A. With the switch S open which point is at a higher potential: a or b?a. point ab. point bPart B. Find the reading of the voltmeter with the switch S open.Va – Vb =Part C. With the switch closed, find the reading of the voltmeter.Part D. With the switch closed, find the reading of the ammeter.

FREE Expert Solution

Kirchhoff's voltage law:

ΣV=0

From Ohm's law:

V=iR, where V is voltage, i is current, and R is resistance.

Part A

Using Kirchhoff's voltage law on the left loop in a clockwise direction:

25-100i+15-i75=040-i175=0i175=40i=40175

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Problem Details

In the circuit shown in the figure (Figure 1) all meters are idealized and the batteries have no appreciate interal resistance.
Part A. With the switch S open which point is at a higher potential: a or b?
a. point a
b. point b

Part B. Find the reading of the voltmeter with the switch S open.
Va – Vb =

Part C. With the switch closed, find the reading of the voltmeter.

Part D. With the switch closed, find the reading of the ammeter.

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