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Power Electronics

Q1: A Shockley diode can be used

A in place of SCR

B as a trigger switch for SCR

C in place of UJT

D both in place of SCR and as a trigger switch for SCR

ANS:B - as a trigger switch for SCR

It is a four layered PNPN device without a gate terminal. Its characteristics is similar to that of SCR with zero gate current. It is acting as a trigger switch for Thyristor.



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