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Questions and Answers
What is the capacitor's capacitance used in the experiment?
What is the capacitor's capacitance used in the experiment?
What is the frequency of the input square wave?
What is the frequency of the input square wave?
What is the purpose of connecting Channel 1 of the CRO?
What is the purpose of connecting Channel 1 of the CRO?
What is the formula to compute the time constant?
What is the formula to compute the time constant?
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What is the resistance of each resistor used in the experiment?
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?
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 τ is calculated by the formula τ = 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.
