Dhaka Polytechnic Institute Subject Electrical Engineering Fundamentals Subject

Dhaka Polytechnic Institute Subject : Electrical Engineering Fundamentals Subject Code : (66712) Presented By: Shamsun Nahar Khanam B. SC. Engg. (EEE) Instructor (Electrical)

Welcome to Electrical Engineering Fundamentals

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ˆe`y¨w. ZK Gbvw. R©

cv. Iqv‡ii m~Î cÖw. Zcv`b ( P= V²/ R )

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ˆe`y¨w. ZK wej m¤úw. K©Z mgm¨v I mgvavbt evw. Zi Rb¨ Gbvw. R© Li. P= 100 X 5 X 7= 3500 Wh evw. Zi Rb¨ Gbvw. R© Li. P= 60 X 6 X 8= 2880 Wh w. UDejv. B‡Ui Rb¨ Gbvw. R© Li. P= 40 X 4 X 9 = 1440 Wh cv. Lvi Rb¨ Gbvw. R© Li. P= 75 X 7 X 12= 6300 Wh †Uwjwfk‡bi Rb¨ Gbvw. R© Li. P=220 X 0. 6 X 11= 1452 Wh [ P= VI] †gv. U‡ii Rb¨ Gbvw. R© Li. P= 1/8 X 746 X 1 X 2= 186. 5 Wh [1 HP= 746 W] †gv. U Gbvw. R© Li. P =15758. 5 Wh =15758. 5 X 10⁻ 3 k. Wh =15. 7585 k. Wh = 15. 7585 Unit {2004 mv‡j Awael© weavq †deªyqvwi gvm = 29 w`b} 2004 mv‡j †deªyqvwi gv‡mi we`¨yr wej = (15. 7585 X 29 X 2. 94)Uv. Kv =1343. 57 Uv. Kv (cÖvq) (DËi)

ˆe`y¨w. ZK wej m¤úw. K©Z mgm¨v I mgvavb = 950. 04 Taka

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cÖkœ: 1. ˆe`y¨w. ZK cv. Iqvi Ges Gbvw. R© Gi GKK I cÖZx. Kmn msÁv `v. I| 2. cv. Iqv‡ii m~Î cÖw. Zcv`b ( P= V²/ R ) Ki 3. ˆe`y¨w. ZK wej m¤úw. K©Z mgm¨v mgvavb Ki| 4. w. K‡jv. Iqv. U Av. Iqvi ej‡Z w. K ey. S ? 5. ˆe`y¨w. ZK cv. Iqvi Ges Gbvw. R© cwigvc. K h‡š¿i bvg wj. L| 6. Iqv. U wg. Uvi I Gbvw. R© wg. Uv‡ii ms‡hv. M w. PÎ Avu. K| 7. GK nm© cv. Iqvi mgvb KZ Iqv. U ?