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Questions and Answers
What is the capacitor's capacitance used in the experiment?
What is the frequency of the input square wave?
What is the purpose of connecting Channel 1 of the CRO?
What is the formula to compute the time constant?
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What is the resistance of each resistor used in the experiment?
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What is the purpose of Step 7 in the experiment?
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Study Notes
Capacitors in DC Circuits Lab
- The lab aims to study the charging and discharging of a capacitor and draw the waveform.
Apparatus and Components Required
- 1 Kit KL 21001
- 2 resistors of 100 Ω each
- 1 capacitor of 10 µF
- 1 bread board
- 1 multimeter
- 1 function generator
- 1 CRO (Cathode Ray Oscilloscope)
- Connecting wires
Circuit Making on Bread Board
- Connect a 100 Ω resistor and a 10 µF capacitor in a series circuit.
- Adjust the function generator to produce a 1 KHz square wave.
- Apply the input square wave to the circuit.
- Connect CRO channel 1 to the input leads to observe the input square wave.
- Connect CRO channel 2 across the capacitor to observe the output waveform.
Measuring Time Constant
- The time constant Ï„ is calculated by the formula Ï„ = RC.
- Measure the time constant for the circuit with one resistor and one capacitor.
- Repeat the experiment for a circuit with two 100 Ω resistors in series and one 10 µF capacitor.
- Record the computed and measured values of the time constant.
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Description
This lab experiment aims to study the charging and discharging of a capacitor in a DC circuit. It involves setting up a series circuit with a resistor and capacitor, and observing the waveform. The apparatus required includes a kit, resistors, capacitors, and a multimeter.
