LAB 3 ECE 281 MARYAM.docx - Lab 3 ECEN 281 Time Constant Maryam ali allay alshehhi 2012000481 Instructor Dr Hussien Attia Objective The objective of

# LAB 3 ECE 281 MARYAM.docx - Lab 3 ECEN 281 Time Constant...

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Lab 3 ECEN 281 Time Constant Maryam ali allay alshehhi 2012000481 Instructor: Dr. Hussien Attia 26-2-2015 Objective:

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The objective of this experiment was to investigate the factors determining the charge and discharge times for a capacitor and resistor circuit. Also, we will find time constant of circuit. Introduction: The time required for a changing quantity in a circuit, as voltage or current, to rise or fall approximately 0.632 of the difference between its old and new value after an impulse has been applied that induces such a change: equal in seconds to the inductance of the circuit in henries divided by its resistance in ohms. Equipment Required: o Electricity & Electronics constructor EEC470 o Basic Electricity and Electronics kit EEC471-2 o Multimeters o Voltmeter 0-20V dc o Power supply unit 0-20 V o 2 channel oscilloscope o VLF square wave generator 1Hz to 5Hz Procedure: 1 - connect the circuit, and set v dc =0 by ( SW at Right Position ( Note that every 1 volt across R2 producer - I= VR 2 /R 2 =1/1000= 10 mA - R2=1% of RT=R1+R2 so R2 will be not effect greatly on the oscilloscope out .
• Fall '16
• Husssain Attia
• Electric charge, RC circuit

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