In figure , assuming the diodes to be ideal ,

Options

A. `D_(1)` is forward biased and `D_(2)` is reverse biased and hence current flows from A to B
B. `D_(2)` is forward biased and `D_(1)` is reverse biased and hence no current flows from B to A and vice-versa.
C. `D_(1) " and " D_(2)` are both forward biased and hence current flows from A to B
D. `D_(1) " and " D_(2)` are both reverse biased and hence no current flows from A to B and vice-verse.

Answer

B

Explanation

In the given circuit `p-`side of `p - n` function `D_(1)` is connected to lower voltage and `n-`side of `D_(1)` to higher voltage. Thus D is reverse blased.
The `p-`side of `p -n` junction `D_(2)` is at higher potential and `n-`side of `D_(2)` is at lower potential.
Therefore `D_(2)` is forward blassed
Hence, current flows through the junction B to A