The SCR shown in Fig. has the latching current of ( 20 mathrm{~mA} ) and is fired by the pulse of width ( 50 mu mathrm{sec} ). Determine whether the SCR triggers or not. B. If the SCR has ( 15 mathrm{~mA} ) as hold current. Assume the SCR is successfully triggered in part A. Now if ( mathrm{R} ) is progressively increased, at what va

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The SCR shown in Fig. has the latching current of  ( 20  mathrm{~mA}  ) and is fired by the pulse of width  ( 50  mu  mathrm{sec}  ). Determine whether the SCR triggers or not. B. If the SCR has  ( 15  mathrm{~mA}  ) as hold current. Assume the SCR is successfully triggered in part A. Now if  (  mathrm{R}  ) is progressively increased, at what value of  (  mathrm{R}  ) will the thyristor turn OFF? Neglected  (  mathrm{ON}  ) state forward drop. Problem 6 Fig. Circuit of example

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