seira askhsewn 5 - PMS “FUSIKH KAI TEQNOLOGIKES...

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PMS FUSIKH KAI TEQNOLOGIKES EFARMOGES TOMEAS FUSIKHS SEMFE EMP - SQOLH MHQANOLOGWN MHQANIKWN EMP - EKEFE DHMOKRITOS HLEKTROMAGNHTISMOS I: PEMPTH SEIRA ASKHSEWN 38. MakrÔc kulindrikìc floiìc me dihlektrik  stajerˆ ² kai aktÐnec a kai b > a topojeteÐtai se (mèqri tìte) omogenèc pedÐo E 0 me ton ˆxonˆ tou kˆjeto sto pedÐo. 'Exw apì ton floiì upˆrqei kenì (h dihlektrik  stajerˆ eÐnai monˆda). (a) ProsdiorÐste to dunamikì kai to hlektrikì pedÐo stic treic parioqèc, agno¸ntac tic paramorf¸seic perÐ tic bˆseic tou kulÐndrou. (b) Exetˆste ta dÔo ìria: tou dihlektrikoÔ kulÐndrou se omogenèc exwterikì pedÐo kai thc kulindrik c koilìthtac se dihlektrikì ulikì. 39. Shmeiakì fortÐo q brÐsketai se apìstash d apì to kèntro dihlektrik c sfaÐrac me aktÐna a < d kai dihlektrik  stajerˆ ². (a) Na upologisteÐ to dunamikì pantoÔ. (b) Na upologistoÔn oi orjog¸niec sunist¸sec tou hlektrikoÔ pedÐou kontˆ sto kèntro thc sfaÐrac. (g) Na epalhjeujeÐ ìti, sto ìrio ² → ∞ to apotèlesma tautÐzetai me to antÐstoiqo thc ag¸gimhc sfaÐrac. 40. DÔo omìkentrec ag¸gimec sfaÐrec me aktÐnec
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This note was uploaded on 10/02/2009 for the course G 001 taught by Professor Shmmygr during the Spring '07 term at National Technical University of Athens, Athens.

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seira askhsewn 5 - PMS “FUSIKH KAI TEQNOLOGIKES...

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