(AVR) PR=IAVR=1R = (power dissipated by a resistor) (28.12) R EXAMPLE 28.8 A combination of resistors...

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(AVR) PR=IAVR=1R = (power dissipated by a resistor) (28.12) R EXAMPLE 28.8 A combination of resistors What is the equivalent resistance of the group of resistors shown in FIGURE 28.24? FIGURE 28.24 A combination of resistors. 10 25 90 45 but not at their bottom ends. Resistors must be connected to each other at both ends to be in parallel. Similarly, the 10 2 and 45 resistors are not in series because of the junction between them. If the original group of four resistors occurred within a larger circuit, they could be replaced with a single 15.4 resistor without having any effect on the rest of the circuit. FIGURE 28.25 The combination is reduced to a single equivalent resistor. MODEL This circuit contains both series and parallel resistors. SOLVE Reduction to a single equivalent resistance is best done in a series of steps, with the circuit being redrawn after each step. The procedure is shown in FIGURE 28.25. Note that the 10 and 25 resistors are not in parallel. They are connected at their top ends wwww 10 40 30+ 30 25 - 15.4 25 (AVR) PR=IAVR=1R = (power dissipated by a resistor) (28.12) R EXAMPLE 28.8 A combination of resistors What is the equivalent resistance of the group of resistors shown in FIGURE 28.24? FIGURE 28.24 A combination of resistors. 10 25 90 45 but not at their bottom ends. Resistors must be connected to each other at both ends to be in parallel. Similarly, the 10 2 and 45 resistors are not in series because of the junction between them. If the original group of four resistors occurred within a larger circuit, they could be replaced with a single 15.4 resistor without having any effect on the rest of the circuit. FIGURE 28.25 The combination is reduced to a single equivalent resistor. MODEL This circuit contains both series and parallel resistors. SOLVE Reduction to a single equivalent resistance is best done in a series of steps, with the circuit being redrawn after each step. The procedure is shown in FIGURE 28.25. Note that the 10 and 25 resistors are not in parallel. They are connected at their top ends wwww 10 40 30+ 30 25 - 15.4 25

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The equivalent resistance of the circuit in the figure can be found by simplifying the ... View the full answer