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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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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power source. R3 and R7 resistors determine the gain of the amplifiers. When the resistor values are greater than 10M then the noise level increases. If they are small like about 100k‚ this time it becomes harder to hear the signal. The PCB file is provided in pdf format. You can apply it to the board by using the ironing method. R1‚ R5 : 100K 1/4W Resistor R2‚ R6 : 1k 1/4W Resistor R3‚ R7 : 8.2M 1/4W Resistor R4‚ R8 : 220 Ohm 1/4W Resistor R9 : 2.2K 1/4W Resistor D1‚ D2 : BAT43 Schottky
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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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EXPERIMENT NO. 10 Thevenin’s Theorem Objectives: 1. To verify the Thevenin’s theorem through an experiment. 2. To find the Thevenin’s resistance RTH by various methods and compare values. Equipment: Resistors‚ DMM‚ breadboard‚ DC power supply‚ and connecting wires. Theory: Thevenin theorem states that any linear two-terminal circuit can be replaced by an equivalent circuit consisting of a voltage source VTH in series with a resistance RTH where * VTH is the open-circuit voltage at
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provided that the remaining variable V and I is known. A resistor is a piece of electric conductor which obeys Ohm ’s Law and has been designed to have a specific value for its resistance. As an extension of the Ohm ’s Law‚ two more relationship can be drawn for electric circuits containing resistors connected in series or/and parallel. For resistors connected in series‚ the sum of their resistance is‚ RTOTAL=R1+R2+ ..... +Rn . And for resistors connected in parallel‚ 1/RTOTAL==1/R1+1/R2+ ..... +1/Rn
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Ohm’s law & resistors in parallel & in series Lab 4 Class: PHY 1434-E475 Due date: March‚ 13 20144 Group Names: Hisham Sageer Objectives: Our object is to confirm Ohm’s law by analyzing the dependence of the electrical current as a function of voltage and as a function of resistance. Also‚ we studied the current flow and voltage in series and parallel. Finally‚ the lab determined the equivalence resistance of series and parallel combination of resistors and compared
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ECT 122 Week 3 iLab #2 Parts: Breadboard DC power supply Handheld DMM Test leads Wire 2 - 1.0kΩ resistor 2.2kΩ resistor 3.3kΩ resistor 1. Using the circuit below‚ calculate the following values. On the circuit drawing‚ indicate the polarities for each voltage and show the current direction. 0.00133 x = 1.33mA R1 + R2 + R3 + R4 = 1kΩ + 2.2kΩ + 3.3kΩ + 1kΩ = 7500 x 10^3 = 7.5kΩ 1.33mA x 1kΩ = 1.33V 1.33mA x 2.2kΩ = 2.93V 1.33mA x 3.3kΩ = 4.39V 1.33mA x 1kΩ
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ECT 122 Week 3 iLab #3 Parts: Breadboard DC power supply Handheld DMM Test leads Wire 1.0kΩ resistor 1.2kΩ resistor 3.3kΩ resistor 10kΩ potentiometer 1. Using the circuit below‚ calculate the anticipated voltage drops across each resistor and record them below. Rt = R1 + R2 + R3 = 150Ω + 2.2kΩ + 3.3kΩ = 5650 x 10^3= 5.65kΩ I = V/R = 10V/5.65kΩ = 0.001769 x 10^-3 = 1.77mA Voltmeter1= 1.77mA x 150Ω = 0.2655 x 10^-3= 265.5mV Voltmeter2= 1.77mA x 2.2kΩ
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