Light emitting diodes (LEDs) (2) - 330 Ohm resistors (orange/orange/brown/gold or silver) Digital multimeter (DMM) #22 Gauge solid wire Procedure Follow the instructions to create different types of circuits. As you create each circuit‚ you will be asked to make measurements and record observations to gain understanding about the circuit and its components. Let us begin by investigating two components that are commonly used in circuits. They are resistors and Light Emitting Diodes (LEDs). Part A:
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components: Series parallel 1. Series Circuit – is an electric circuit having its parts connected serially (without branching). It has only one path for the charges to move along and the charges must move in “Series” which means first going to one resistor then the next. Here if one of the circuits is broken down‚ then no charge will move through the circuit because there is only one path. Which is if one bulb burned out the whole lights will go off. The lamps on a Christmas tree are connected in series
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through experimentation. Hypothesis – The More Ohms the resistor has‚ the weaker the current will become. Materials – Power pack‚ ammeter‚ voltmeter‚ resistors‚ connecting wires. METHOD – 1. POWER PACK POWER PACK RESISTOR RESISTOR VOLTMETER VOLTMETER AMMETER AMMETER A A V V Set up a known resistor in a simple circuit. 2. Vary the voltage and record the potential drop (V) and the current (I) through the resistor. Do this for a number of settings on the power pack‚ for
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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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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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positive leg is about 1.4 volts higher than the voltage on the negative side. Remember that there is no resistance to limit the current so a resistor must be used in series with the LED to avoid destroying it. Resistors Resistors are components that have a predetermined resistance. Resistance determines how much current will flow through a component. Resistors are used to control voltages and currents. A very high resistance allows very little current to flow. Air has very high resistance. Current
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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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Electricity Part II -Questions 1. Explain the two methods of connecting resistors in circuits with the help of circuit diagrams. 2. Write the formulae to calculate the effective resistances when resistors are connected (a) in series and (b) in parallel. 3. How is the total potential difference calculated across a combination of resistors in series? 4. Example 12.7 An electric lamp‚ whose resistance is 20 Ω‚ and a conductor of 4 Ω resistance are connected to a 6 V battery
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