3. Use the voltmeter to measure. voltage (the voltmeter probes go on opposite ends of the...
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3. Use the voltmeter to measure. voltage (the voltmeter probes go on opposite ends of the batteries or whatever else you want to measure). The tip of the voltage probes (one is red and the other is black) must be within the dashed red circle in order to make a measurement. Use the ammeter to measure Wire Battery Light Bulb Resistor Switch Voltage 9.00 V Show Current Electrons O Conventional Labels Values Voltmeter Ammeters + Wire Resistivity 0.90 A Battery Resistance Battery Voltage 1st battery 2nd battery 3rd battery 1+2 1+2he table below current. When you drag the ammeter into the simulation notice that it has a red, dashed circle at either end. This indicates that the ammeter must be part of the circuit. The voltmeter can be moved in and out of the circuit without affecting anything. The ammeter is different because it must be a part of the circuit. Removing the ammeter requires breaking connections, removing the voltmeter does not. Real life voltmeters and ammeters work similarly. 4. Measure the voltage of each battery to make sure that each battery is set to 9 volts. You can change the battery voltage by clicking on the battery. Now measure the voltage of two batteries in series (1+2 in the table) and then three batteries in series (1+2+3 in the table). Record your data Figure 4.2: Light bulb in series with a battery. The voltmeter is measuring the voltage of the battery and the ammeter is measuring the current. 5. How is the voltage related to the number of batteries in series? What could be causing this? 6. Repeat Step 4 but this time measure the voltage of two batteries in parallel (1 + 2 in the table) and then three batteries in parallel (1 + 2 + 3 in the table). Remember that circuit elements in parallel are arranged like rungs of a ladder. In Figure 4.3 two resistors and a battery are in parallel. For these two measurements, keep the voltmeter on the same battery, just add more batteries in parallel. Battery Voltage 1+2 Battery Show Current Electrons O Conventional Labels Values 1+2+3 Light Bulb Resistor Switch Voltmeter Artes Wire Resistivity + Battery Resistance Figure 4.3: Example of a parallel circuit: two resistors and a battery in a parallel configuration. 7. How is the voltage related to the number of batteries in parallel? What could be causing this? Answer (Q 7) 8. Build a circuit consisting of a light bulb and a battery (similar to Figure 4.2). Click on the battery and adjust the voltage using the slider. How does varying the voltage affect the light bulb brightness? What do you think is causing this? Answer (Q8) 9. Using the simulation, build the following three circuits: (a) 1 light bulb in series with 1 battery (b) 2 light bulbs in series with 1 battery (c) 3 light bulbs in series with 1 battery For each circuit, measure the voltage on one of the light bulbs (it doesn't matter which one) and the current through the battery. Further, for each circuit briefly describe the relative brightness of the light bulbs. Use this information to complete the table below. Include a screen shot of each circuit! Light Bulb Voltage Battery Current Brightness Circuit 9a Circuit 9b Circuit 9c Predict what would happen to the overall brightness if two more light bulbs were added in series. 3. Use the voltmeter to measure. voltage (the voltmeter probes go on opposite ends of the batteries or whatever else you want to measure). The tip of the voltage probes (one is red and the other is black) must be within the dashed red circle in order to make a measurement. Use the ammeter to measure Wire Battery Light Bulb Resistor Switch Voltage 9.00 V Show Current Electrons O Conventional Labels Values Voltmeter Ammeters + Wire Resistivity 0.90 A Battery Resistance Battery Voltage 1st battery 2nd battery 3rd battery 1+2 1+2he table below current. When you drag the ammeter into the simulation notice that it has a red, dashed circle at either end. This indicates that the ammeter must be part of the circuit. The voltmeter can be moved in and out of the circuit without affecting anything. The ammeter is different because it must be a part of the circuit. Removing the ammeter requires breaking connections, removing the voltmeter does not. Real life voltmeters and ammeters work similarly. 4. Measure the voltage of each battery to make sure that each battery is set to 9 volts. You can change the battery voltage by clicking on the battery. Now measure the voltage of two batteries in series (1+2 in the table) and then three batteries in series (1+2+3 in the table). Record your data Figure 4.2: Light bulb in series with a battery. The voltmeter is measuring the voltage of the battery and the ammeter is measuring the current. 5. How is the voltage related to the number of batteries in series? What could be causing this? 6. Repeat Step 4 but this time measure the voltage of two batteries in parallel (1 + 2 in the table) and then three batteries in parallel (1 + 2 + 3 in the table). Remember that circuit elements in parallel are arranged like rungs of a ladder. In Figure 4.3 two resistors and a battery are in parallel. For these two measurements, keep the voltmeter on the same battery, just add more batteries in parallel. Battery Voltage 1+2 Battery Show Current Electrons O Conventional Labels Values 1+2+3 Light Bulb Resistor Switch Voltmeter Artes Wire Resistivity + Battery Resistance Figure 4.3: Example of a parallel circuit: two resistors and a battery in a parallel configuration. 7. How is the voltage related to the number of batteries in parallel? What could be causing this? Answer (Q 7) 8. Build a circuit consisting of a light bulb and a battery (similar to Figure 4.2). Click on the battery and adjust the voltage using the slider. How does varying the voltage affect the light bulb brightness? What do you think is causing this? Answer (Q8) 9. Using the simulation, build the following three circuits: (a) 1 light bulb in series with 1 battery (b) 2 light bulbs in series with 1 battery (c) 3 light bulbs in series with 1 battery For each circuit, measure the voltage on one of the light bulbs (it doesn't matter which one) and the current through the battery. Further, for each circuit briefly describe the relative brightness of the light bulbs. Use this information to complete the table below. Include a screen shot of each circuit! Light Bulb Voltage Battery Current Brightness Circuit 9a Circuit 9b Circuit 9c Predict what would happen to the overall brightness if two more light bulbs were added in series.
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Related Book For
Income Tax Fundamentals 2013
ISBN: 9781285586618
31st Edition
Authors: Gerald E. Whittenburg, Martha Altus Buller, Steven L Gill
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