Essay About Capacitor Voltage And Ilab Steps

Ect 125 Assignments and Stuffect125_w1_ilab_1_instructions
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iLab Steps
Part I: Basic Capacitor Functions
Step 1: Open Circuit File
Open the circuit file Class Activity 1 in the Week 1 folder found in Document Sharing
utilizing MultiSim.
Step 2: Energize Circuit
Click the switch to turn on the circuit.
Step 3: Operation and Observation Procedure
Accomplish the following procedure to observe the operation of the circuit and to assist in
the answering of questions at the end of Part I.
Press the space key to close the switch and observe the effect on the capacitor voltage.
Press the space key again to open the switch.
Press the A key to close the switch and observe the effect on the capacitor voltage.
Press the A key to open the switch.
Step 4: Answer Questions
When a voltage is applied across a capacitor (J2 closed), what takes place?
Once a voltage source has been placed across a capacitor, what happens if the voltage source is then removed (J2 opened)?
How long will the capacitor remain this way?
If a capacitor is “charged” and a conductive path is placed from the side of the capacitor to the other what happens to the charge (J1 closed)?
Part II: Series and Parallel Capacitors
Step 1: Calculation
Calculate the theoretical values of total capacitance for the following sets of capacitors in
both series and parallel configurations:
a. 100 pF, 220 pF
b. 100 nF, 220 nF, 470 nF,
c. 10 uF, 1 uF, 4.7 uF
d. 100 pF, 22 nF, 4.7 uF
Step 2: Circuit Construction
Arrange the capacitors in the previous step in series and parallel configurations on the
breadboard and utilize the Digital Multimeter (DMM) to measure the total capacitance in
each configuration.
Step 3: Answer Questions
What is the major difference between series and parallel configurations in regard to total capacitance?
Were there any differences observed between the theoretical and measured values?
What is a valid explanation for any differences