Neviem, ako vypočítať tento príklad. Mám spravený zápis a pripravené možné vzorce - no neviem, kde začať.
Strieborný vodič s prierezom 0,2 mm2 a dlhý 100 m je pripojený na napätie 100 V. Aká je relaxačná doba voľných elektrónov, pohyblivosť a stredná driftová rýchlosť, ak merný elektrický odpor striebra pri teplote 20 °C je 1,54.10-8 Ω a koncentrácia voľných elektrónov striebra je 5,8.1028 m-3 ?
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