Student Exploration Circuits Vocabulary ammeter‚ circuit‚ current‚ electron‚ ohmmeter‚ Ohms law‚ parallel circuit‚ resistance‚ resistor‚ series circuit‚ voltage Prior Knowledge Questions (Do these BEFORE using the Gizmo.) Strings of holiday lights can be designed in one of two ways. In some strings of lights‚ each light is connected to the others along a single wire (in series). In others‚ each light is attached to its own wire (in parallel). Suppose a single light bulb burns out. How do you think
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ECT 122 Week 5 iLab #1 Parts: Breadboard DC Power Supply Hand Held DMM Test leads Wire 100 Ω resistor‚ 120 Ω resistor‚ 220 Ω resistor‚ 330 Ω resistor 1. Identify each of these circuits. 2. Given the circuit below‚ calculate the values listed below. IT: _64mA__ IA: __18.18mA____ IB: __45.45mA__ VR1: _3.99V___ VR2: __5.99V__ VR3: _5.45V___ VR4: __4.54V___ Ra= R1+R2= 220Ω+330Ω= 550Ω Rb=R3+R4= 120Ω+100Ω= 220Ω Ia= Vs/Ra= 10V/550Ω=
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Ohm’s Law Lab Report Number Three Quyama T. Wheeler @02669651 Partner: Munah Kaye Amber Frazier Objective: To demonstrate Ohm’s law and to determine the resistance of a given resistor. Theory: Ohm’s law is the assertion that the current through a device is always directly proportional to the potential difference applied to the device. Electric current is the moving of charges from a higher potential to a lower potential. Wires of different material (a copper wire versus a silver wire‚ for
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Application 1. What are the laws of series resistors? Of parallel resistors? Are these laws verified in your experiment? Ohm’s Law - Ohm’s law states that the voltage (V) across a resistor is proportional to the current (I)‚ where the constant of proportionality is the resistance (R). Series and parallel resistors - The total resistance of resistors connected in series is the sum of their individual resistance values. The total resistance of resistors connected in parallel is the reciprocal
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design and to implement an Analog Multimeter using a Permanent Magnet Moving Coil (PMMC) meter movement. A.2 SPECIFIC OBEJECTIVE The specific objectives are: * To determine the internal resistance of the PMMC meter movement using variable resistor method. * To compute for the shunt resistance of 10mA and 100mA range ammeter. * To compute for the shunt resistance of 5 volts and 30 volts range voltmeter. * To determine the shunt resistance of ohmmeter with a 1.5 voltage. * To
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three different resistors and we were to calculate the values for the total resistances‚ potential differences‚ and currents for both circuits. Then‚ we were to take out the needed materials and parts of the circuits to start the lab. We then build a series circuit‚ with three resistors‚ a switch‚ a power source‚ and a few spacers in between. Next‚ we were to configure the multimeter as a voltmeter and an ammeter‚ to measure the potential differences and currents of the resistors in the series circuit
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UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Ordinary Level *7845774653* 5054/41 PHYSICS Paper 4 Alternative to Practical May/June 2010 1 hour Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your Centre number‚ candidate number and name on all the work you hand in. Write in dark blue or black pen. You may use a soft pencil for any diagrams‚ graphs or rough working. Do not use staples‚ paper
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and compare those measured values to the values that the voltages should have (which you compute by analyzing the circuit). The rest of this course will concentrate on analyzing and troubleshooting resistive circuits (circuits that contain only resistors in addition to power supplies). In later courses you’ll learn how to analyze and troubleshoot circuits that contain other components‚ such as capacitors‚ inductors‚ diodes‚ and transistors. This unit covers just about everything you could ever want
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Resistors & Ohm’s Law Abstract: In this lab‚ students were introduced to the field of electrical engineering. The objectives of the lab were to determine the resistance of a resistor using various methods and to also verify Ohm’s Law. In the lab‚ the students were instructed to calculate the resistance by using color codes‚ measuring the resistance using a Digital Multi Meter‚ calculate the average resistance from 10 voltage and current measurements‚ and find the graphical resistance
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REMOTE CONTROLLING OF HOME APPLIANCES ABSTRACT The main aim of conducting this project is to control a maximum of eight electrical appliances by just using a TV remote. Normal IR circuits can switch only one device. But using this circuit‚ different devices can be controlled using same remote with different switches. In this circuit‚ we interfaced 8 devices. These devices are switched using remote keypad -1 to 8. AT89C51 microcontroller is used to control the inputs and
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