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. N:2-3 / Series and Parallel Circuits. It’s a cool, clear night as you stroll by the harbor with your family. . The night is dark, but the waterfront is bright thanks to the thousands of twinkling white lights that outline the tall ships. . 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 . OVERVIEW. WHAT IS RESISTOR ?. TYPES OF RESISTOR.. CONNECTION OF RESISTOR.. RESISTOR COLOUR CODE. RESISTOR POWER RATING. WHAT. . IS A R. ESISTOR. . ??. A  RESISTOR  IS A  PASSIVE  TWO - TERMINAL  ELECTRICAL COMPONENT  THAT IMPLEMENTS  ELECTRICAL RESISTANCE  AS A CIRCUIT ELEMENT. . 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 . Dr Susan Cartwright. Dept of Physics and Astronomy. University of Sheffield. Parallel Universes. Are you unique?. Could there be another “you” differing only in what you had for breakfast this morning?. Please read . Bonan. , Chapter . 16-17. Leaf Anatomy. Stomate. (pl. stomata). Leaf Fluxes and Resistances. Many leaves have stomata only on lower surface. Heat fluxes don. ’. t pass through stomata. Suggested Problems. 15. The . current in a single-loop circuit with one resistance R is 5.0 A. When an additional resistance of 2.0 . Ω. is inserted in series with R, the current drops to 4.0 A. . What . © 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. Contents of Chapter 19. EMF and Terminal Voltage. Resistors in Series and in Parallel. Kirchhoff. ’. s Rules. EMFs in Series and in Parallel; Charging a Battery. Circuits Containing Capacitors in Series and in Parallel. 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. Electromagnetic Force. The current in a circuit is driven by…. Generally, what . is needed for motion to take place?. Consider that electric current is the movement of electrons. what is the tension (pressure) on the current?. Resistance. Voltage. Current is a function of these two. What if we want to control the current or alter the voltage?. Change the Resistance!. How do we do this?. Which of the three parts of Ohm’s triangle do we have the most control over?. Short Circuit. A complete circuit without a . resistor. Electricity is . lazy. take the path of least resistance. Caused by two conducting wires touching or a paper clip might bypass a load. Results in excessive . 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..