What’s the difference between resistance and resistivity? Resistance is the obstruction offered to the flow of current by a conductor. Resistivity is the obstruction offered to the flow of current by UNIT AREA OF the conductor. So basically‚ resistance is the property of the object (say a copper wire)‚ whereas resistivity is the property of the substance (copper). And so resistance depends upon the properties of the object. Whereas resistivity depends upon the properties of the metal.
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POWE INVERTER FOR HOME USE AND SIMPLIFIED CIRCUIT DIAGRAMME POWER INVERTERS Power inverters are simply DC (direct current) to AC (alternating current) converters - they convert DC energy stored in a battery‚ to the electric current (AC) that your appliances require. An inverter taps current from the public supply when that is on (or‚ alternatively‚ from a power generator)‚ stores that power in its battery bank as DC and converts it to AC when the power supply is gone. That way‚ the inverter
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Project Title: Why is Solar Power Better than Traditional Power? Solar Power might be a popularly growing technology today but the idea of its inception dates back to more than 175 years. It was in 1839 when Alexandre Edmond Becquerel discovered that certain materials produced small amounts of electricity on exposure to sunlight. Later‚ in 1876 William Adams along with Becquerel’s student Richard Day‚ discovered that selenium contained potential properties of converting light into electricity. The
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AIM- OUR AIM WAS TO FIND OUT WHICH VARIABLES AFFECT RESISTANCE‚ AND WHICH ONE HAS THE GREATEST EFFECT. BACKGROUND INFORMATION: Resistance is the force that opposes the flow of electrons in a circuit. The equation for resistance is Ω=V/A. (Ohms equals Voltage divided by amps). Resistivity is a measure of how strongly a material opposes the flow of electrical current‚ There are four main factors that affect resistance: Length – this is because the electrons would bump into more atoms‚ the longer
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Chpt 4 Quiz opposing points of view | | | | opposite interests to decrease boredom | | | | positive emphasis on your partner’s negative behavior | | Instructor... Premium770 Words4 PagesCategory: Health Positive Attitude students now days. This is why a lot of students pay less attention in class‚ more boredom is present‚ more frustration‚ and more disruptive behavior becomes present... Premium894 Words4 PagesCategory: Computers & Internet Positive Thinking |[pic] | |Emotional blocks
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Pneumatic and electropneumatic controllers ................................. 14 1.4 Advantages of electropneumatic controllers .................................. 17 Chapter 2 – Fundamentals of electrical technology ........................ 19 2.1 Direct current and alternating current............................................. 20 2.2 Ohm’s Law...................................................................................... 22 2.3 Function of a solenoid ....................................
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Purpose: The purpose of this experiment is to study the basics of a direct current circuit. There are several parts to this experiment‚ where resistors are set up as parallel‚ series or both. We measure the potential difference and current measured by voltmeter and ammeter respectively. Also‚ we set up a Wheatson Bridge to measure the unknown resistor. Equipment: Voltmeter PCC 000218 Galvanometer PCC 000180
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decide whether the family business be sold or not. 2. To have a plan for Jim Jr.’s and Pam’s (second generation) retirement. III – AREAS OF CONSIDERATION AC1 No succession plan was ever established. AC2 At Jim Jr.’s entry into the business‚ a direct sales model was implemented upon his recommendation to better the financial position of the company. AC3 Jim Jr. fully acquired the business from Paul‚ his uncle‚ after his father’s death. AC4 The company remained a regional leader throughout the
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Journal of Theoretical and Applied Information Technology © 2008 JATIT. All rights reserved. www.jatit.org SIMULATION OF REAL AND REACTIVE POWER FLOW CONTROL WITH UPFC CONNECTED TO A TRANSMISSION LINE 1 S. Tara Kalyani‚ 2G. Tulasiram Das 1 Associate professor‚ Department of Electrical Engineering‚ Jawaharlal Nehru Technological University‚ Hyderabad‚ India -500085; 2 Professor‚ Department of Electrical Engineering‚ Jawaharlal Nehru Technological University‚ Hyderabad‚ India -500085;
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Introduction: Lighting is an essential service in all the industries. The power consumption by the indusrtial lighting varies between 2% to 10% of the total power depending on the type of industry. Innovation and continuous improvement in the field of lighting‚ has given rise to tremendous energy saving opportunities in this area. The simplest and the most widely used form of controlling a lighting installation is "On-Off" switch. In the electrical lighting system in our community‚ especially
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