Experiment #17 Classification of Chemical Substances Prepared for: Dr. Robert O’Reilly By: Kudaibergenov Baizak 20.11.2013 Nazarbayev University Introduction While many thousands of substances are known‚ they can be classified into a few simple categories based on type of bonding that exists among the atoms in the substance. Bonds are chemical forces that hold atoms together to form molecules or compounds. These categories are ionic‚ molecular and metallic substances.
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and L in parallel (C)R and C in parallel (D)R and C in series ELECTRONICS CAREER www.ecatn.blogspot.com 9. The Q-factor of a parallel resonance circuit consisting of an inductance of value 1mH‚ capacitance of value 10-5F and a resistance of 100 ohms is (A) 1 (B)10 (C) π 20 (D) 100 10. In a travelling electromagnetic wave‚ E and H vector fields are (A) (B) (C) (D) perpendicular in space . parallel in space. E is in the direction of wave travel. H is in the direction of wave travel. 11. The lower
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CHAPTER 1 INTRODUCTION 1.1 Introduction of Project ―GSM based Control System‖ implements the emerging applications of the GSM technology. Using GSM networks‚ a control system has been proposed that will act as an embedded system which can monitor and contr ol appliances and other devices locally using built-in input and output peripherals. Remotely the system allows the user to effectively monitor and control the house/office appliances and equipment via the mobile phone set by sending commands
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Jessica McLemore Professor Karageorgis Soc 368 18 April 2018 DURKHEIM vs. SIMMEL Durkheim applied the theory of functionalism which was very different from other sociologists such as Marx and Weber who were propagating the theories of conflict of interest. Durkheim explained that harmony was the best form of defining the society as opposed to conflict. Durkheim looked at the functions of the social objects and what the social phenomenon does to facilitate and produce social cohesion. From the
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Unit 7 Ch 23 Electric Circuits Due: 7:20am on Friday‚ December 5‚ 2014 To understand how points are awarded‚ read the Grading Policy for this assignment. Problem 23.1 Draw a circuit diagram for the circuit of . Part A Choose the correct diagram. ANSWER: Correct Problem 23.2 Draw a circuit diagram for the circuit of . Part A Choose the correct diagram. ANSWER: Correct Problem 23.3 Draw a circuit diagram for the circuit of . Part A Choose the correct diagram. ANSWER: Correct Kirchhoff’s
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Diodes Diodes are components that allow current to flow in only one direction. They have a positive side (leg) and a negative side. When the voltage on the positive leg is higher than on the negative leg then current flows through the diode (the resistance is very low). When the voltage is lower on the positive leg than on the negative leg then the current does not flow (the resistance is very high). The negative leg of a diode is the one with the line closest to it. It is called the cathode. The
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Figure 1: Software Flowchart [pic] determine the cost‚ accuracy and response of rain sensors 1. Rain Sensor |Components |Cost (P) | |1k ohms and 10k ohms resistor |P 2.00 | |2.2 uF Capacitor |P 5.00 | |NE555 timer |P 20.00
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resistance coil whose resistance is to be determined in the right gap between C and D 3. Connect the resistance box in the left gap between A and D 4 Make all the connections as e shown in the circuit diagram. 5. Take out some resistance (say 2 ohm) from the resistance box‚ plug the key K. 6. Touch the jockey gently first at left and then at right end of the bridge wire. 7. Note the deflections in the galvanometer .if the galvanometer shows deflections in opposite directions‚ the connections
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resistance of an electrical conductor is the opposition to the passage of an electric current through that conductor. Electrical resistance shares some conceptual parallels with the mechanical notion of friction. The SI unit of electrical resistance is the ohm (Ω).An object of uniform cross section has a resistance proportional to its resistivity and length and inversely proportional to its cross-sectional area. All materials show some resistance‚ except for superconductors‚ which have a resistance of zero
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resistance almost remains unchanged by increase of temperature. 2. Name two special characteristics of heater coil. 3. A wire of resistance 4 ohms is bent to form a circle. What is the resistance between two diametrically opposite ends? 4. How does the resistance of a conductor change if its temperature is increased? 5. A current of 4A flows in a wire of resistance 60 ohms. Calculate electrical energy consumed in 2 minutes. 6. V-I graph for two resistors is given. Which of the two has minimum resistance?
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