PPT-Resistors How can we intentionally change the amount of resistance in our circuit?

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 Ohms triangle do we have the most control over. 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 . 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?. 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 . Series Circuits. Take a series circuit with two resistors. Since each is the same resistance, they use up the same amount of voltage, . 6V. Therefore the voltage at point A is . 6V. Series Circuit. We can rearrange the circuit as shown on the right. 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. . and Electronic Components. © 2012 Project Lead The Way, Inc.. Principles Of Engineering. What is a Breadboard?. Sometimes called a . protoboard. Reusable platform for temporarily built electronic circuits. and Electronic Components. © 2012 Project Lead The Way, Inc.. Principles Of Engineering. What is a Breadboard?. Sometimes called a . protoboard. Reusable platform for temporarily built electronic 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. matter. . . Matter. is anything that has mass (weight) and occupies space. . All matter is made up of . molecules. . . that have a certain number of atoms.. Atom. . is broken down even further into a . What is a Breadboard?. Sometimes called a proto-board. Reusable platform for temporarily built electronic circuits. Why Breadboard?. It takes less time (and money) to breadboard a circuit than to design and fabricate a printed circuit board (PCB. © 2012 Project Lead The Way, Inc.. Principles Of Engineering. What is a Breadboard?. Sometimes called a proto-board. Reusable platform for temporarily built electronic circuits. Why Breadboard?. It takes less time (and money) to breadboard a circuit than to design and fabricate a printed circuit board (PCB. 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..