C) in relation to figure 1
Name: Landon Herren Date: Resistance and Ohm's Law designing or using electronic devices, we eed to know bow changing the voltage 28.8 the device will affect the current flowing 249 hit The t mult caniple, what will happen to the current this g through a circuit element, such as a bulb wire reco part of a circuit, if we increase the voltage CUIT it? Alternatively, what will happen to the pas at passing through a carbon resistor as thro bulb ge increases? To answer these questions, start with two definitions: acn Definition 1: We define the resistance, R. of an electrical device as the ratio of the potential difference or foltage drop, I, across it to the current passing through it (definition of Resistance). Definition 2: We say that a device obeys Ohn's Law if the current passing through it is anwqis directly proportional to the voltage drop across it, independent of the value of the voltage drop, so that the value of its resistance doesn't change even if we apply a different voltage across it his assignment, you will compare the behavior of a flashlight bulb to that of a carbon resistor and ermine whether or not these devices obey Ohm's Las. Preliminary Questions te: You will receive fall credit for each prediction made in this preliminary section whether qu atches conclusions you reach in the next section. As part of the learning process it is important to mpare your predictions with your results. Do not change your predictions! Which of the two meters is wired to measure the current passing through the bulb shown in Figure 1? The one of the left or the one on the right? Note: The "light grey" wire in the bottom the photo is an enhancement of a red wire in the movie frame. If you still have trouble interpret winng open the image entitled
and use it instead of Figure 1. Left Meter Right Meter _x b) How many batteries are in the circuit in Figure 1? Three _x Zero One Two_ (c) Draw a neat circuit diagram for Figure I using the following standard symbols Physics with Video Analysis