In case of a single-phase half-wave circuit with RL load, with firing angle α and extinction angle β, the thyristor is reversed biased from

In case of a single-phase half-wave circuit with RL load, with firing

1.	In case of a single-phase half-wave circuit with RL load, with firing angle α and extinction angle β, the thyristor is reversed biased from
A.	β to α
B.	β to 2π+α
C.	β to 2π
D.	β to 2β
Answer» D.