... 0 ,1) .2,5 = k2 = 7,5 Ta cú x1 = x2 k1 = k 2 = 7,5mm k1 a a 1 k = k 11. 2,5 = k (1 + 0 ,1) .2,5 = 7,5 1 k (1 + 0 ,1) = 3 k1k2 Suy k2 ( + 0 ,1) = k2 (3 + 0,1k1 ) = 3k1 3(k1 k2 ) = 0,1k1k2 k1 ... 6,625 .10 34.3 .10 8 = AAl + e U h1 AAL = h e U h1 = 1, 6 .10 19 .1, 05 = 5,5 21. 10 19 J 1 276 .10 c c 6,625 .10 34.3 .10 8 = ACU + e U h ACu = h e U h = 1, 6 .10 19 .0,86 = 6,638 .10 19 J 2 248 .10 34 ... Khi t mc song song C1 = 2C in tớch ca b t: Q1 = EC1 = 2EC Nng lng ca mch : W1 = Khi UC1 = E thỡ WC1 = Q12 = CE2 2C1 C1U C1 E CE = 2C = 16 16 => WL1 = W1 WC1 = 15 CE (*) 16 C EC in tớch ca b...