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= 2/k
kA = k/2
kB = k
kC paralel = k + k = 2k
1/kC = 1/2k + 1/k
= 3/2k
kC = 2k/3
kDparalel1 = k + k + k = 3k
kDparalel2 = k + k = 2k
1/kD = 1/3k + 1/2k
= 5/6k
Kd = 6k/5
a(i) ΔxA : ΔxB = :
= :
= 2/k : 1/k
= 2 : 1
a(ii) ΔxC : ΔxD = :
= :
= :
= : (3 . )
= :
= 3 : 5
b (i) TA : TB = 2π : 2π
= :
= √2 : √1
= √2 : 1
(ii) TC : TD = 2π : 2π
= :
= :
= 1/2√6 : 1/2√10
= √6 : √10