Lab.-Experiment3-_1st-year.pdf

Lab.-Experiment3-_1st-year.pdf - Electrical Engineering...

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Electrical Engineering Department First year Lab Aswan University Faculty of Engineering 18 | P a g e Experiment No. 3 Verification of Circuit Theories Objectives: 1- Verification of the superposition theorem 2- Verification of Thevenin’s theorem 3- Verification of Reciprocity theorem Equipment: Instruments: 2 DC power supplies 2 Digital multimeter Components: Breadboard ± 5HVLVWRUV ²³Nƺ´ µ¶· Nƺ´ DQG ³¸ Nƺ¹ Superposition theorem The strategy used in the Superposition Theorem is to eliminate all but one VRXUFH RI SRZHU ZLWKLQ D QHWZRUN DW D WLPH´ XVLQJ VHULHVºSDUDOOHO DQDO\VLV WR GHWHUPLQH YROWDJH GURSV ²DQGºRU FXUUHQWV¹ ZLWKLQ WKH PRGLILHG QHWZRUN IRU each power source se SDUDWHO\¶ 7KHQ´ RQFH YROWDJH GURSV DQGºRU FXUUHQWV KDYH EHHQ GHWHUPLQHG IRU HDFK SRZHU VRXUFH ZRUNLQJ VHSDUDWHO\´ WKH YDOXHV DUH DOO ´VXSHULPSRVHGµ RQ WRS RI HDFK RWKHU ²DGGHG DOJHEUDLFDOO\¹ WR ILQG WKH actual voltage drops/currents with all sources active .
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Electrical Engineering Department First year Lab Aswan University Faculty of Engineering 19 | P a g e Procedure: 1- &RQQHFW WKH FLUFXLW DV VKRZQ LQ )LJ¶ ³´ QRWH WKH SRODULW\ RI WKH YROWPHWHU in each measurement 2- 0HDVXUH WKH YROWDJH GURS DFURVV HDFK UHVLVWRU ²95³´ 95»´ DQG 95±¹ and record the results in table 1 3- Turn off the power supplies and replaced the power supply V2 with a short-circuit and then turn on the supply V1 4- 0HDVXUH WKH YROWDJH GURS DFURVV HDFK UHVLVWRU ²95³´ 95»´ DQG 95±¹
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