Question

With the anode positive with respect to the cathode & the gate circuit open, the SCR is said to be in the

(a) reverse blocking mode

(b) reverse conduction mode

(c) forward blocking mode

(d) forward conduction mode

I have been asked this question in an interview.

I need to ask this question from Thyristors-1 topic in chapter Power Electronics Devices of Power Electronics

Answer 1

Right option is (c) forward blocking mode

To elaborate: The SCR is in the forward blocking mode with its top and bottom junctions forward biased and the middle junction reversed biased.