# FIGURE 3-1 Basic parts of a computer. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle.

## Presentation on theme: "FIGURE 3-1 Basic parts of a computer. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle."— Presentation transcript:

FIGURE 3-4 Ohm’s law circle: V-voltage; I-current; R-resistance. To use the circle, cover the value you want to find and read the other values as they appear in the formula: V = I ( R; I = V/R; R =V/I. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 3-20 Finding total resistance when all resistances are the same. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 3-23 Making measurements in a parallel circuit: (a) original circuit; (b) circuit set up to measure current through path 1. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. (a)

FIGURE 3-23 continued Making measurements in a parallel circuit: (a) original circuit; (b) circuit set up to measure current through path 1. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. (b)

FIGURE 3-28 Kirchhoff’s laws: (a) voltage law example; (b) current law examples. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 3-28 continued Kirchhoff’s laws: (a) voltage law example; (b) current law examples. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. (b)

FIGURE 3-32 Current flow in a parallel circuit: (a) one path; (b) two paths; (c) R2 changed to 5 Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. (a)

FIGURE 3-32 continued Current flow in a parallel circuit: (a) one path; (b) two paths; (c) R2 changed to 5 Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. (b)

FIGURE 3-32 continued Current flow in a parallel circuit: (a) one path; (b) two paths; (c) R2 changed to 5 Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. (c)

FIGURE 3-35 Formulas for finding voltage, current, resistance, or power. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 3-39 Voltage-divider circuits: (a) series dc circuit used as a voltage divider; (b) tapped resistor used as a voltage divider; (c) potentiometer used as a voltage divider. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. (a)

FIGURE 3-39 continued Voltage-divider circuits: (a) series dc circuit used as a voltage divider; (b) tapped resistor used as a voltage divider; (c) potentiometer used as a voltage divider. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. (b)

FIGURE 3-39 continued Voltage-divider circuits: (a) series dc circuit used as a voltage divider; (b) tapped resistor used as a voltage divider; (c) potentiometer used as a voltage divider. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. (c)

FIGURE 3-41 Voltage division: (a) equation for problem solving; (b) sample problem. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 3-41 continued Voltage division: (a) equation for problem solving; (b) sample problem. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 3-43 Voltage-divider design problem: (a) circuit; (b) voltage values. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 3-43 continued Voltage-divider design problem: (a) circuit; (b) voltage values. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 3-44 Kirchhoff’s voltage law: (a) voltage drop procedure; (b) algebraic procedure. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 3-47 The superposition method: (a) original circuit; (b) circuit with 30-V source shorted; © circuit with 10-V source shorted; (d) original circuit with currents recorded. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 3-49 Using the Thevinin method for a one-source circuit: (a) original circuit; (b) problem-solving procedure; (c) Thevinin equivalent circuit. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 3-52 Two-source Thevinin equivalent circuit: (a) problem-solving procedures; (b) Thevinin equivalent circuit. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 3-54 Norton equivalent circuit procedure: (a) problem-solving procedure; (b) Norton equivalent circuit. Dale R. Patrick Electricity and Electronics: A Survey, 5e Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.