A) (i) < (ii) < (iii)
B) (iii) < (ii) < (i)
C) (ii) = (iii) < (i)
D) (i) = (iii) < (ii)
Correct Answer: C
Solution :
(i) VA = ?10V and VB = ?5V Diodes D1 and D3 are reveres biased and D2 is forward biased. \[\Rightarrow {{R}_{AB}}=R+\frac{R}{4}+\frac{R}{4}=\frac{3}{2}R\]. (ii) When VA = ? 5V and VB = ? 10V Diodes D2 is reverse biased D1 and D3 are forward biased \[\Rightarrow {{R}_{AB}}=\frac{R}{4}+\frac{R}{2}+\frac{R}{4}\]=R. (iii) In this case equivalent resistance between A and B is also R. Hence (ii) = (iii) < (i).You need to login to perform this action.
You will be redirected in
3 sec