Ncert Exercises & Solutions

In the figure given below, assuming the diodes to be ideal,

1.	\(D_1\) is forward biased and \(D_2\) is revers-biased and hence current flows from \(A\) to \(B\).
2.	\(D_2\) is forward biased and \(D_1\) is reverse-biased and hence no current flows from \(B\) to \(A\) and vice-versa.
3.	\(D_1\) and \(D_2\) are both forward-biased and hence current flows from \(A\) to \(B\).
4.	\(D_1\) and \(D_2\) are both reverse-biased and hence no current flows from \(A\) to \(B\) and vice-versa.