(energy) in a circuit increases, so does the current (flow of charges). If the resistance increases, the current flow decreases. Voltage (volts) Current (amps) = --------------------------------------------Resistance (ohms, ) To work through this skill sheet, you will need the symbols used to depict circuits in diagrams. The symbols that are most commonly used for circuit diagrams are provided to the right. If a circuit contains more than one battery, the total voltage is the sum of the individual
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* Ohms Law * Kirchhoff's Law * Direct Current Circuit * Current * A current (I) of electricity exists in region when a net electric charge is transported from one point to another in that region. * If a charge is transported through a given cross section of the wire in a time, then the current through the wire is I = q/t. * Where: q is in COULOMBS, t is in SECONDS and I is in AMPERES (1A = 1C/s). * BATTERY * A battery is a source of electrical energy. * If no internal
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Check “show battery” and “show cores”, watch what happens, adjust some variables 1. Why do electrons (blue dots) move? The flow of current (+) is opposite to the flow of the electrons. ; note if toward or away from + terminal of the battery. The electrons move because they are being attracted towards the positive side of the battery and thus move because of the attraction in the battery. 2. What does the Ammeter (on the left) measure? How is this shown in the sim? It measures the rate
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us at www.pro-base.eu - 1 - HOMEMADE BATTERIES Making and evaluating homemade batteries Author Ken Gadd, 4science, Stratford sub Castle, SP1 3YP, UK; ken@4science.org.uk Languages available English, Slovenian Summary Batteries power most of the portable electrical and electronic devices we use. Different types are available, suited for different uses. Batteries convert chemical energy into electrical energy. You can make a battery from a lemon, a piece of zinc and a
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relationship between voltage, current, and resistance. Go to ⎝Battery-Resistor Circuit. Click on the green “Run Now” button. The simulation should look like the picture to the right. 1. Change the resistance and voltage. Observe what happens to the current. Note the relationship you observed between each of the following: (direct, inverse, none) a. resistance and current = _indirect_______________________ b. voltage and current = direct__________________________
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Regardless of the conversion process, electrical energy consists of three basic components: current, voltage, and resistance. Current is the net transfer of electric charge per unit of time. Voltage is the amount of work required to move a charge from one point to another. Resistance is the opposition to the flow of current. Understanding the relationship between current, voltage, and resistance allows engineers to design efficient, safe, and functional electrical circuits. Electrical circuits
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the equivalent resistance of the circuit ____________ (increases, decreases) and the total current of the circuit ____________ (increases, decreases). 2. Three identical light bulbs are connected to a battery as shown below. P, Q, X, Y and Z represent locations along the circuit. Which one of the following statements is true? a. The current at Y is greater than the current at Q. b. The current at Y is greater than the current at P. c. The current at Y is greater than the current at Z. d. The
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ID Number: 20140385 Group Number: A2 Lab Partners: * Christopher BAGME * Leandra BANIYAMAI * Amex BATEME * Kingston BOB * Natalie BROWN Abstract Batteries and resistors can be connected in both series and parallel circuits where the current and voltage running through them can be altered. Batteries connected in series give off large amounts of electromotive force while the reverse happens when connected in parallel. Resistors connected in series are added individually
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total resistance (sum) of the two wires? =0.22378 (using R=ρL/A) h. What is the current through the wire? = 0.357A (using I=V/R) i. What is the voltage across the copper part? = 29.8mV (voltage divider rule) j. What is the voltage across the aluminum part? = 50.2mV k. What is the total electrical power used in the wires? = 0.0285W or 28.5mW (P=I2R) 6. For the network shown in Figure 4, each of the resistors shown have resistance R = 12.0 Ω. A 12.0-V battery is connected
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of resistors shown above have the same resistance between the terminals? A) I and II A) I and IV B) II and III C) II and IV (E) III and IV [pic] 22. In the circuit shown above, what is the value of the potential difference between points X and Y if the 6-volt battery has no internal resistance? A) 1 V A) 2 V B) 3 V C) 4 V D) 6 V Total resistance 4 Ω + ( 1/3 Ω + 1/6 Ω)-1 = 6 Ω Current = I = V/R 6 V / 6 Ω = 1 A V = 1 A 4 Ω = 4 V
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