Capacitance Measurement Lab | ENGINEERING PHYSICS

Lab 10: Capacitance Measurement by Charging/Discharging Method

Lab Report Information

Experiment: To determine the capacitance of the given capacitor by the method of charging and discharging through resistor

Course Code: SH 151 – ENGINEERING PHYSICS LAB

Description: Complete lab report including theory, apparatus, procedure, observations, calculations, results, and precautions for finding capacitance

Complete Lab Report

Objective

To determine the capacitance of a given capacitor using charging and discharging method through a resistor

Theory

RC circuit behavior during charging and discharging

Time constant (τ = RC) and its significance

Exponential nature of voltage change

Apparatus

Capacitor (unknown value)

Resistor (known value)

DC power supply

Voltmeter

Stopwatch

Switch

Connecting wires

Procedure

Circuit setup and connections

Charging process observations

Discharging process observations

Time measurement at different voltage levels

Observations

Charging curve data table

Discharging curve data table

Graphical representation

Calculations

Determination of time constant from graph

Calculation of capacitance (C = τ/R)

Error analysis

Results

Calculated capacitance value

Comparison with standard values

Percentage error

Conclusion

Summary of findings

Practical applications

Sources of error and improvements

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