(a) For the circuit show in Fig. 18.10, traverse loop 3 opposite to the direction shown, and demonstrate that the resulting equation is the same as that obtained if you had followed the direction of the arrows.
(b) Repeat the procedure in part (a) by traversing loops 1 and 2 in the direction opposite that taken in the text, and demonstrate that equations equivalent to those in Example 18.5 are obtained.
Answer to relevant QuestionsUse Kirchhoff’s loop theorem to find the current in each resistor in Fig. 18.30. Find the current in each resistor in the circuit shown in Fig. 18.37. How many time constants will it take for a charged capacitor to be discharged to one-fourth of its initial stored energy? A galvanometer with a full-scale sensitivity of 2000 μA has a coil resistance of 100-Ω. It is to be used in an ammeter with a full-scale reading of 30 A. (a) Should you use (1) a shunt resistor, (2) a zero resistor, or ...(a) In Exercise 48, suppose instead the case had been properly wired and grounded as shown in Figure 18.23. If the grounding wire had a total resistance of 0.10-Ω, what is the ratio of the current in you to the current in ...
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