Sagot :
Cevap:
E Şıkkı
Açıklama:
Q= l^2Rt. l nolu kapta R direncinden l akimi geçerse sekil2'de R/2'den 2l akim gecer. ll nolu kaptaki 2R direncten l/2 akim gecer.
l nolu kap için t aninda
l^2R.t= m.c.∆t ∆t= 10 ise T1= 10+10= 20C
2t aninda
l. nolu kap
l^2.R.2t = 2l^2.Rt ∆t= 20 ise T1= 10+20= 30C
ll nolu kap
(2l)^2.R/2. 2t=8l^2.Rt/2= 4l^2Rt ∆t=40 ise T2= 10+40= 50C
lll.nolu kap
(l/2)^2.2R.2t= l^2Rt ∆t= 10 ise T3= 10+10= 20C olur.
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