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    Notes On Resistor

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    2.1.1 RESISTORS A resistor is a passive two-terminal electrical component that implements electrical resistance as acircuit element. Resistors act to reduce current flow, and, at the same time, act to lower voltage levels within circuits. Resistors are having fixed resistances or different resistances, which are found in thermistors, trimmers, photo resistors and potentiometers. The current through a resistor is directly proportional to the voltage across the resistor's terminals. This relationship

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    Is a Filament Bulb an Ohmic Resistor? First of all I did some research because to answer the question 'Is A Filament Bulb an Ohmic Resistor' I needed to know what an ohmic resistor was. OHM'S LAW The current flowing through a metallic conductor is proportional to the potential difference. This is only true when the temperature is constant. If you read the current as you change the potential difference across a conductor the ratio V/I (volts over amps) is the same if it is ohmic

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    Resistors in Series and in Parallel I. OBJECTIVE The objective of the study is to understand and differentiate the resistance, voltage, and the current relations in circuits in series and in parallel II. THEORY Series circuits A series circuit is a circuit in which resistors are arranged in a chain, so the current has only one path to take. The current is the same through each resistor. The total resistance of the circuit is found by simply adding up the resistance values of the individual

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    Current Characteristics of a Resistor and a Filament Lamp Both a resistor and a filament lamp obey Ohm's law. Ohm's Law ========= As voltage doubles, so does the current for a conductor at a constant temperature. Diagram for Experiments ======================= Resistor -------- [IMAGE] [IMAGE] Filament Lamp [IMAGE] Results Table's =============== Resistor -------- Power Pack Reading Voltage (V) Current (A) Resistance

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    Varying the Voltage Across a Fixed Value Resistor For my project I am going to investigate the affects that occur when varying the voltage across a fixed value resistor. I will observe things that will happen. I will look at a variety of possibilities, and hopefully I will find out what happens when the voltage is changed. Planning ======== Things the voltage may effect when varied are: Current Heat Resistance I have decided to change the voltage and measure the current

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    Investigating the Brightness of Light Shining on the Light Dependant Resistor The aim of my investigation is to investigate how the brightness (intensity) of light shining on the LDR (Light Dependant Resistor) affects the Resistance. We can change the intensity using different methods. One method is to increase the voltage, by plugging the power supply to a higher voltage. But this method can be hard as you might not be able to know how higher the voltage is, it might be harder to have

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    Resistors to Change

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    Resistors to the Change Leadership is about change, but what reactions need to be taken if there are resistors for the change. In every organization there should be some employees who resist the change, but a smart leader is the one who try to come up with a list of resistors before applying the change and try to solve them. Some of the common resistors in most of the organizations are: lack of control, more work to be done and culture acceptance. Going back to DG directorate and the two drivers

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    Electrical Resistance

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    the flow of current. Resistance involves collisions of the current-carrying charged particles with fixed particles that make up the structure of the conductor. Resistance is often considered as localized in such devices as lamps, heaters and resistors in which it predominates, although it is a characteristic of every part of a circuit, including connecting wires and electric transmission lines. In circuits where the current (I) and voltage (V) are related by a simple proportionality constant

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    Establishing the Current-Voltage Relationship For a Metal Conductor Investigation- To Establish The Current- Voltage Relationship For A Metal Conductor. In this experiment I will be investigating the current- voltage relationship for a metal conductor. The variables that I need to keep constant in this experiment are: 1. Thickness of the wire. 2. Length of the wire 3. Input of voltage coming from the power supply should be kept constant. 4. Temperature of wire should be

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    needed to melt a wire. In this investigation, I have decided to change the thickness of the wires that I use, and then while increasing the resistance, I will measure the current needed to melt the different wires. I will start with the variable resistor set to the maximum. I will slowly decrease resistance to increase current. Prediction: I predict that the very thick wires will melt at a very high current, while the thinner wires will melt at a lower current. This is because the thick wires

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