components. (c) The equation defines the electrical power P supplied by a source. When a source of e.m.f. ε delivers a current I to a component‚ the power supplied P = εI. The equation is applicable to sources only. (d) The power P dissipated by a resistor of resistance R is given
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linearly but rather varies in exponential or logarithmic manner. Such variable resistors are commonly used for adjusting sensitivity along with a sensor. The variable resistance is obtained across the single terminal at front and one of the two other terminals. The two legs at back offer fixed resistance which is divided by the front leg. So whenever only the back terminals are used‚ a preset acts as a fixed resistor. Presets are specified by their fixed value resistance. AT89C51 Microcontroller
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laws Objective: o Kirchhoff’s voltage law (KVL)‚ o Kirchhoff’s current law (KCL)‚ o Verify Kirchhoff’s voltage and current laws using a given circuit. Equipment: o Digilent Electronics Explorer Board‚ o Digital Multi-Meter‚ o Assorted resistors. Theoretical support: o Laboratory 3‚ o Laboratory 4‚ o Lecture 4 (Microsoft Power Point Support): Kirchhoff’s laws‚ Applying Kirchhoff’s laws. Prelab: Vsource Fig.1 1 ©raul.fizesan@ael.utcluj.ro Passive Electronic Components
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a sphere of radius 10m? Q.8> Name two types of commercially available resistors. Q.9> On the same graph plot the variation of E versus R and V versus R for a point charge. Q.10> Define mobility and mention its SI unit Q.11> Two resistors are connected in parallel b/w A and B to give a net resistance of 2 ohms. When one of these resistors is broken‚ the net resistance becomes a 3 ohms. What is the resistance of the resistor that was broken? Q.12> Using a suitable graph‚ explain why nichrome is
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ECT 122 Week 3 iLab #1 Parts: Breadboard DC Power Supply Hand Held DMM Test leads Wire 1.0kΩ resistor 2.2kΩ resistor 3.3kΩ resistor 1. Identify the type of the following circuits as either serial or parallel. 2. List four characteristics of a series circuit. 1) The total current is the same everywhere in the circuit. 2) A series circuit only has one path for current to flow. 3) The sum of all the voltages sources is equal to the sum of all the voltage drops.
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Fire alarm circuit ABSTRACT Here is a simple fire alarm circuit based on a Light Dependent Resistor (LDR) and lamp pair for sensing the fire. The alarm works by sensing the smoke produced during fire. The circuit produces an audible alarm when the fire breaks out with smoke. When there is no smoke the light from the bulb will be directly falling on the LDR. The LDR resistance will be low and so the voltage across it (below 0.6V). The transistor will be OFF and nothing happens. When there is sufficient
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INTRODUCTION Wouldn’t it be nice to have your home take care of your thing for you‚ automatically‚ without you having to lift a finger? You bet it would. This is the promise of Home Automation. There are many different systems‚ especially in larger homes‚ that can benefit from being integrated. Some of these systems include security alarm‚ HVAC‚ audio/video & lighting. Home automation integrates together‚ enabling them to function more efficiently‚ improve functionality‚ conserve resources & enhance
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Ammeter Question 4 In the following table the values of current I flowing in a given resistor for the corresponding values of potential difference V across the resistor are shown : I(amperes) | 0.5 | 1.0 | 2.0 | 3.0 | 4.0 | V(Volts) | 1.6 | 3.4 | 6.7 | 10.2 | 13.2 | Plot a graph between V and I and use this graph to find the value of current when potential difference across the resistor is 5V. Ans. Finding the current corresponding to 5 V potential difference (from graph) =1.5
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the side of the capacitor to the other what happens to the charge (J1 closed)? 1. When voltage is applied across a close capacitor current is going to flow through the resistor‚ into the capacitor. That happens because the voltage across the capacitor is zero to start with‚ so closing the switch puts a voltage across the resistor causing current flow. 2. After the voltage source have been remove there is no current on flowing into the capacitor. 3. A Capacitor can hold a charge indefinitely
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NORTH SOUTH UNIVERSITY Spring 2013 EXPERIMENT Maximum Power Transfer Theorem Course: EEE 141 Section: 1 Faculty: MAA Instructor: RKK Date of performance: 23rd March 2013 Date of submission: 25th March 2013 Group – 6 |# |Name |ID | |1 |Md. Al Kaiser |1230032043
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