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Below shown ideal circuit is triggered at a firing angle of α. The voltage across the SCR is zero from ωt =
  • a)
    0 to α
  • b)
    0 to π
  • c)
    α to 2π
  • d)
    α to π
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Below shown ideal circuit is triggered at a firing angle of α. T...
 Before the SCR is triggered all of the supply voltage appears across it that is from 0 to α, at α the device is gated and it starts to conduct acting like a S.C (ideally). Hence voltage across it is zero from α to π. At π the SCR is again naturally commutated due to the reversal of the AC supply & a negative voltage appears across it.
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Below shown ideal circuit is triggered at a firing angle of α. The voltage across the SCR is zero from ωt =a)0 to αb)0 to πc)α to 2πd)α to πCorrect answer is option 'D'. Can you explain this answer?
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