leakage current does not flow. leakage current flows from anode to cathode. leakage current flows from gate to anode. ...

What is reverse blocking mode of SCR?

When a negative voltage is applied to the anode and a positive voltage to the cathode, the SCR is in reverse blocking mode, making J1 and J3 reverse biased and J2 forward biased. The device behaves as two diodes connected in series. A small leakage current flows. This is the reverse blocking mode.

When anode made positive with respect to the cathode with gate circuit open thyristor is said to be?

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