"Resistor" Essays and Research Papers

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Resistor

Diagram: Here is the schematic for the circuit: Light Dependent Resistors Light Dependent Resistors (LDR) are also called photoresistors. They are made of high resistance semiconductor material. When light hits the device, the photons give electrons energy. This makes them jump into the conductive band and thereby conduct electricity. A photoresistor or light-dependent resistor (LDR) or photocell is a light-controlled variable resistor. The resistance of a photoresistor decreases with increasing incident...

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Resistors in series and parallel.

Title: Resistors in Series and Parallel Date: 17/7/05 Aim: The aim of this experiment is to compare the predicted and actual resistance in a circuit of resistor combinations in series and in parallel. Background: A resistor is an electrical component/device that has electrical resistance. Resistors can be used in electric circuits for protection of components, voltage division or current control. In an ideal resistor the resistance remains constant regardless of the applied voltage or current...

Free Electrical resistance, Ohm's law, Electric current 1193  Words | 7  Pages

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resistor color code

At the end of the period, the students are expected to: 1. Identify the color coding of resistors; 2. Compute for resistance of a color-coded resistor; 3. Compute for minimum and maximum tolerance of a resistor. II. Subject Matter: Topic: Resistor Color Coding Reference: Technology and Home Economics II Luz Villanueva et. al pp. 200-203 Materials: Visual Aids Resistors Values Integration: Orderliness and Patience III. Procedure: A. Preliminary Activity Prayer ...

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Color Band Resistors

Define the following: RESISTOR A resistor is a component of a circuit that resists the flow of electrical current. It has two terminals across which electricity must pass, and it is designed to drop the voltage of the current as it flows from one terminal to the other. Resistors are primarily used to create and maintain known safe currents within electrical components. Resistors are coated with paint or enamel, or covered in molded plastic to protect...

Free Electrical impedance, Electrical resistance, Georg Ohm 916  Words | 4  Pages

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TRANSIENT ANALYSIS OF A RESISTOR-INDUCTOR (RL) CIRCUIT

OF A RESISTOR-INDUCTOR (RL) CIRCUIT TOM CARNEY Table of Contents 1. Introduction………………………………………………………………………………….Page 2 2. Theoretical Analysis………………………………………………………………………Page 3 3. Questions related to constructed circuit……………………………………….Page 5 4. Conclusion…………………………………………………………………………………….Page 6 5. Works cited……………………………………………………………………………………Page 6 6. Illustrations…………………………………………………………………………………….Page 7-8 Transient Analysis of a Resistor- Inductor...

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Otis Boykin Essay

research projects. Boykin, in his lifetime, ultimately invented more than 25 electronic devices. One of his early inventions was an improved electrical resistor for computers, radios, televisions and an assortment of other electronic devices. Other notable inventions include a variable resistor used in guided missiles and small component thick-film resistors for computers. Boykin's most famous invention was likely a control unit for the artificial heart pacemaker. The device essentially uses electrical...

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Ac Circuits

capacitor, resistor, and inductor have on the voltage, and current of a circuit. We created circuits with 2 resistors, a capacitor and a resistor, and then a capacitor, resistor, and an inductor. The circuits were then hooked up to a function generator, and oscilloscope to find the voltage across certain frequencies and then calculate the peak current, capacitive reactance or the inductive reactance, and phase difference. When beginning the experiment, we measured the resistance of both resistors with...

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physics lab ohms law

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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Series and Parallel Dc Circuits

equations are true of a set of resistors in series. The current is the same in all of the resistors and the connections between them. I_in= I_12= I_23= I_out (1) The voltage across the whole set is equal to the sum of Voltages across each individual resistor. V_eq=V_1+V_2+V_3 (2) The resistance of the connected set is equal to the sum of the resistance of each resistor. The equivalent resistance acts as one single resistor. R_eq=R_1+R_2+R_3 ...

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ECT122 W1 ILab 3

ECT 122 Week 1 iLab #3 Parts: Breadboard Handheld DMM DC power supply Test leads Resistor kit 1. List the functions available on the DM717 handheld digital multimeter (DMM). This meter can measure three basic electrical properties voltage, current and resistance. 2. What is the function of the COM connection? What color lead is placed in this connection? It’s the common ground and is used in all measurements. Black lead is placed in this connection...

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