![]() ![]() In the 21 st century, electrical energy production, distribution, and application have become consumer driven. Since the late 1800s, engineers have designed systems to utilize electrical energy due to its ability to be converted, stored, transmitted, and reconverted efficiently into other forms of energy. Introduction to Electric Circuits Electric Circuit SchematicsĪctivity 1.2.3 Electrical Circuits – Simulation.The parallel circuit has a higher voltage because it is connected to the resistor and they share the energy. Explain how your data support the relationships observed For the combination circuit, explain the relationship between the current output of the power supply and the current through each path in the parallel circuit. In a parallel circuit the current through the resistor is half because it doesn’t rely on the other diode to continue the currentįor the combination circuit, explain the relationship between the voltage output at the power supply and the voltage across the two paths. Explain how your data support the relationship observed. Explain the relationship between the current output of the power supply and the current through each diode in the parallel circuit. They are both connected to the same power source giving them the same amount of power.Įxplain the relationship between the voltage output of the power supply and the voltage across each diode in the parallel circuit. The current going to every diode is lessened as observed in the data.Įxplain why the current is the same between the diodes as it is from the power supply in step 8. Start off as 9 and as it goes through the diode it loses power because it goes through the resistors. Explain how your data support the relationships observed. Explain the relationship between the current output at the power supply and the current through each component in the series circuit. In a parallel circuit, they both get their own individual power from the power supply.Įxplain the difference between the voltage output at the battery and the voltage across each component in the series circuit. In a series, the diode is reliant on the other diode as they are connected. The voltage is lower for 1 and 2 but higher for 3 and 4.Ĭurrent through diode #1 and #2 _27_ mA = 0.027 _ AĬurrent through diode #3 and #4 _27_ mA = 0.027_ AĬurrent through diode branches _ 0.054_ AĬurrent total from power supply = 0.01_ AĮxplain the difference between a series and a parallel circuit. How does the voltage from the power supply relate to the other voltages? Voltage across diode #3 _2.92_ V Voltage across diode #4 _2.92_ V Voltage across diode #1 _0.58_ V Voltage across diode #2 _0.56_ V Total of current through diode branches _0.055_ AĬurrent delivered by power supply _0.009_ A Measure the current through each of the diodes.Ĭurrent through diode #1 _27.3_ mA = _0.0273_ A Current through diode #2 _27.7_ mA = _0.0277_ A Total voltage across resistor and diode #2 _9_ V Total voltage across resistor and diode #1 _9_ V Voltage across diode #1 _2.91_ V Voltage across diode #2 _2.90_ V Voltage across power supply _9_ V Voltage across resistor _6.12_ V total voltage drop across circuit= 44 %Īdd a multimeter between the diodes and record the current. Total voltage across resistor and two diodes 4.89V Voltage across diode #1 0 V Voltage across diode #2 0 VĬlose the switch. Resistance of the resistor: Formula: _V/I=R_ Verify the current with the multimeter.Ĭurrent (multimeter) ma = 20.7 milliamps. Use the voltage (V) for the resistor in the previous step and the current (I) from the power supply to determine the resistance of the resistor. Record the current delivered by the power supply. How does the voltage across the resistor change during the first few seconds the LED is turned on? It shoots up to just below one Voltage across diode (switch closed) 1.97 Volts Voltage across resistor (switch closed) 6.99 Volts Leave the button pushed and note how the resistor voltage changes. Record the measurements in the space provided below. Measure the voltage drop across the diode and across the resistor. Voltage across diode (with switch open) 0 VĬlose the switch so the diode turns on. Voltage across resistor (with switch open) 1 V Record the measurements in the space provided below.b With the switch open, Measure the voltage across the power supply, across the 330 ohm resistor, and across the diode. You are to interpret the schematic diagram to create a circuit. Construct the simple circuit displayed below using a 330 ohm resistor, diode, and a switch in the open position. ![]()
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