PPT-20.2 Resistors in Series or Resistors in Parallel

pp 736 745 Essential Questions Based on the orientation of resistors in a circuit how is the distribution of current and voltage affected What are the advantages or disadvantages of arranging resistors in certain ways. 64 A Two-Digit Number Code is assigned to each standard Resistance Value per E96 guidelines. See chart below. The two-digit code is followed by a letter multiplier. Each letter, from "A” — " for tomorrow. … . Ch. 31: . CQ 3. , Probs. 10, 16 & 42. . CQ11: . R. b. < . R. c. . < . R. a. = . R. e. . < . R. d. . . 30.22:. . σ. . = 6.7 x 10. 5. Ω. -1 . m. -1. a) Find the currents . i. 1. and . i. 2. . in the circuit in the figure. . b) Find the voltage . v. o. .. c) Verify that the total power developed equals the . total power dissipated.. Quiz 2. The current . Bellwork. : Use the Ohm's law equation to determine the missing values in the following circuits.. Drawing Electrical. Circuit Diagrams. name variable unit symbol . source of . emf. ε volts V . A) 1 m/s.. B) 1 km/s.. C) 10 m/s.. D) the speed of light.. E) 1 mm/s.. 2) When a current flows through a metal wire, the moving charges are. A) positive metal ions.. B) negative metal ions.. C) only electrons.. pg. . 51. Objectives. Calculate the equivalent resistance for resistors connected in both series and parallel combinations.. Construct series and parallel circuits of lamps (resistors).. Observe and explain relative lamp brightness in series and parallel circuits. . Resistors in Series. PHET simulation. Resistors in Series. Total resistance for a circuit in series (. Rtotal. ). . Rtotal. = R1 + R2 + R3 + …. Ohm’s Law (V = I x R) . The R typically means total Resistance (. © 2011 Project Lead The Way, Inc.. Magic of Electrons . Variable Resistors. Potentiometers. Variable Resistors. A resistor whose value can be varied mechanically between its minimum and maximum values. Dr. Mohamed Bingabr. Chapter 21. Circuit in DC Instruments. PHY 1214. General Physics 2. Chapter Outline. Resistors in Series and Parallel. Electromotive Force: Terminal Voltage. Kirchhoff’s Rules. Electric Power. How was power define before? . Time rate of doing work or using energy. Electric Power - Rate at converting electrical energy into other forms of energy. . P = W/t or P = E/t. Unit: watt, w = J/s. Objective of Lecture. Explain mathematically how a voltage that is applied to resistors in series is distributed among the resistors.. Chapter 2.5 in Fundamentals of Electric Circuits. Chapter 5.7 Electric Circuit . Vocabulary. Electric . charge. (q) – exists due to excess or deficient electrons on an object. Charge comes in two kinds: positive and negative. . The unit of charge is the coulomb.. Electric . current. resistors. A resistor, like batteries and lights, can also be present in an electrical circuit. A resistor limits the flow of electricity in the circuit. Like rocks in a pipe that slow the flow of water, a resistor will limit the flow of electricity. A variable resistor is made of a piece of metal that can change in length. As the length of the resistor changes, so does the resistance in the same direction. . Outline. Resistors in series. Resistors in parallel. The voltage divider and the current divider circuits. Voltage division and current division. Measuring voltage and current. The ∆-to-Y transformation..