expecting our experimental graph to provide us a straight line. Current Vs. Voltage There are two types of resistors in the circuit; they are series and paralllel connections. Series connection In series connection‚ the current flows through each resistor is the same. There is only one path for the current to pass through. The voltage drop is proportional to the resistance of individual resistors. Rtotal is larger than any of the individual R. Parallel connection In parallel connection‚ the
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three ways: »E=IxR »I=E/R » R = E/I PHYS 401 Physics of Ham Radio 29 PHYS 401 Physics of Ham Radio 30 Resistors Mnemonic: “Black Bears Run On Young Grass By Violets Growing Wild” PHYS 401 Physics of Ham Radio 31 Resistor Types - Precision PHYS 401 Physics of Ham Radio 32 Resistors - Film Type PHYS 401 Physics of Ham Radio 33 Resistors - Variable PHYS 401 Physics of Ham Radio 34 Calculating Resistance • Parallel: • Series: R=R1+R2+R3+R4
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voltmeter is used to measure voltage. Resistor (Fixed and Variable) Fixed Variable A resistor restricts the flow of current‚ for example to limit the current passing through an LED. A resistor is used with a capacitor in a timing circuit. This type of variable resistor with 2 contacts (a rheostat) is usually used to control current.. Capacitor: (fixed & variable) Fixed Variable A capacitor stores electric charge. A capacitor is used with a resistor in a timing circuit. A variable capacitor
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by mathematical analysis. Apparatus (Lab Kit* or NIC Lab) 5 resistors one 6V battery or power supply (each under 1.5 kΩ each‚ not all equal) digital multimeter 12 connecting wires *If you do not have the Lab Kit‚ you can use equivalent items. Contact your instructor regarding equivalent items to ensure that the objective of this experiment is maintained. Introduction The most basic of electrical circuits contains a single resistor connected to the terminals of a battery. This is a complete
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What is Telecommunication? Many people call telecommunication the world’s most lucrative industry. If we add cellular and PCS users‚ there are about 1800 million subscribers to telecommunication services world wide (1999). Annual expenditures on telecommunications may reach 900‚000 dollars in the year 2000. In industrialized nations‚ the telephone is accepted as a way of life. The telephone is connected to the public switched telecommunications network (PSTN) for local‚ national
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Wire 56kΩ resistor 1. Given the circuit below‚ use Ohm’s law to determine the total current in the circuit and the voltage across the resistor. 5V My mulitsim of this circuit. 2. Construct the circuit above on the breadboard. Starting at the positive terminal of the +5 V power supply‚ follow the schematic around to install each component. 3. The first component is a wire that will connect the +5 V connection of the power supply to the resistor. 4. Install a 56KΩ resistor. a. One lead
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Quantity | 1. | DMM CD771(Series no:IN4/04/1260 ) | 1 | 5. | Crocodile clip | 4 | 2. | DC Ammeter(Series no:81BA3893 ) | 1 | 6. | Decade Resistance Box(Series no:VR1/1030/INST ) | 1 | 3. | Power supply | 1 | 7. | Resistor 1.0kΩ | 2 | 4. | Project board | 1 | 8. | Resistor 10kΩ | 1 | 4.0 Theory Moving Coil Instruments Moving Coil Instruments (MC): The moving coil instruments can be of permanent magnet type (PMMC) or dynamometer type. The permanent magnet‚ polarized instruments are
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water? (it takes 4185J to raise the temperature of 1 liter of water through 1oC) 7. A circuit delivers energy at the rate of 15W and the current is 13A. Determine the energy of each coulomb of charge in the circuit. 8. A current of 5 A flows in a resistor of resistance 32 . Determine the rate of heat dissipation and also the heat dissipated in 15 s. 9. A motor gives an output power of 20 kW and operates with efficiency of 85 %. If the constant input voltage to the motor is 170 V‚ what is the constant
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Description Substitutions C1 1 0.001uf Disc Capacitor C2 1 5.6pf Disc Capacitor C3‚C4 2 10uf Electrolytic Capacitor C5 1 3-18pf Adjustable Cap R1 1 270 Ohm 1/8W Resistor 270 Ohm 1/4W Resistor R2‚R5‚R6 3 4.7k 1/8W Resistor 4.7K 1/4W Resistor R3 1 10k 1/8W Resistor 10K 1/4W Resistor R4 1 100k 1/8W Resistor 100K 1/4W Resistor Q1‚ Q2 2 2N2222A NPN Transistor 2N3904‚ NTE123A L1‚ L2 2 5 Turn Air Core Coil MIC 1 Electret Microphone MISC 1 9V Battery Snap‚ PC Board‚ Wire For Antenna
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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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