In the figure shown the readings of the ammeters `A_(1) and A_(2)` are respectively.

Options

A. `(1)/(3) A and 1/3 A`
B. Zero and 1 A
C. zero and 0.5 A
D. 0.5 A and Zero

Answer

C

Explanation

The diode is reverse bias condition therefore current through it zero. Hence , reading of ammeter `A_(1)` is zero.
However, reading of ammeter `A_(2)` is
`I_(2)=V/R=(10)/(20)=0.5A`