Correct AnswerC. emitter of T1 and base of T1
Quick Explanation
In the two-transistor equivalent of a GTO, anode shorts are introduced to alter regenerative action and improve turn-off behavior. The shorting path is represented between the emitter of T1 and the base region associated with T2, corresponding to the device's anode-short structure.
Detailed Explanation
Concept & Reasoning
A PNPN thyristor is represented by coupled PNP and NPN transistors. GTO design modifies this regenerative pair to permit gate-assisted turn-off. Anode shorts reduce the effective gain of one transistor path and help stored charge removal, which improves turn-off capability at the cost of some forward characteristics.
How to Solve It in the Exam
Relate device construction to the coupled-transistor model, not to an external load connection.
Important Exam PointAnode shorts are a structural turn-off aid in the GTO.
Related Revision Path
This question sits in the revision path Power Electronics → Thyristor Devices → GTO Thyristor .
