University of Texas, Dallas - PHYS 2426CapacitorsLab

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Capacitors Open the PhET Simulation: https://phet.colorado.edu/en/simulation/capacitor-lab-basics Complete the data tables and answer the questions below. Submit this document as your lab report. O... BJECTIVES:  (Capacitor connected to battery): Study the effect of changing the voltage across a capacitor, its plates area and separation distance on the capacitance, charges on plates and electric field between plates.  (Charged capacitor disconnected from battery): Study the effect of changing the plates area and separation distance of a capacitor on the voltage across the plates, charges on plates and electric field between plates.  Study discharging of a capacitor through a light bulb. PART 1: Parallel Plate Capacitor – Battery Connected Choose “Capacitors” tab. Select all four options in top right corner (Plate Charges, Bar Graph, Electric Field, Current Direction). 1.Note the Capacitance: C =0.09pF, Plates separation: d =10 mm, Plates Area : A = 100 mm^2 Using “d” and “A”, compute the capacitance below. Does it match the value provided? Answer: Yes it matches the value provided Part 1 a – “d” and “A” constant – Battery Connected Connect Voltmeter across the capacitor. Slowly increase the battery voltage to 1.5 V. Observe changes in following quantities as “d” and “A” are kept constant and voltage is increased. C : Capacitance, Q : Charge on the capacitor, V : Voltage across the capacitor, E : Electric field between the plates of capacitor Note the observations and provide reasoning in table below. 2.As voltage was being increased, what did you observe about the motion of charges in the external circuit? When the voltage was increased, it resulted in the charge moving from the positive plate to the negative plate [Show More]

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