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Which one of the following is/are not true with reference to a thyristor?
1. Latching current (IL) is associated with the turn-off process and holding current (IH) with the turn-on process.
2. Holding current is associated with the turn-off process and latching current with the turn-on process
3. A thyristor can be termed as an AC switch
  • a)
    Both 1 & 2 are correct.
  • b)
    Only 2 & 3 are correct
  • c)
    Only 2 is correct
  • d)
    Only 1 is correct
Correct answer is option 'C'. Can you explain this answer?
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Which one of the following is/are not true with reference to a thyrist...
Silicon Controlled Rectifier is a device that has four layers and three PN junctions. The silicon control rectifier (SCR) consists of four layers of semiconductors, which form NPNP or PNPN structures, having three P-N junctions labeled J1, J2 and J3, and three terminals.
  • The anode terminal of an SCR is connected to the p-type material of a PNPN structure, and the cathode terminal is connected to the n-type layer, while the gate of the SCR is connected to the p-type material nearest to the cathode.
  • A thyristor or SCR (silicon-controlled rectifier) can only conduct in one direction so it is mostly called a DC switch.
 
Latching & Holding Current:
  • Latching Current is the minimum anode current required to maintain the thyristor in the ON state immediately after a thyristor has been turned on and the the gate signal has been removed.
  • Holding Current is the minimum anode current to maintain the thyristor in the on-state.
  • Latching current is always greater than holding current.
  • Latching current is the minimum value of anode current which it must attain during turn – ON process to maintain conduction when gate signal is removed.
  • Holding current is the minimum value of anode current below which it must fall for turning – OFF the thyristor.
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Which one of the following is/are not true with reference to a thyrist...
And 2
b)Only 1
c)Only 2
d)None of the above
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Which one of the following is/are not true with reference to a thyristor?1. Latching current (IL) is associated with the turn-off process and holding current (IH) with the turn-on process.2. Holding current is associated with the turn-off process and latching current with the turn-on process3. A thyristor can be termed as an AC switcha)Both 1 & 2 are correct.b)Only 2 & 3 are correctc)Only 2 is correctd)Only 1 is correctCorrect answer is option 'C'. Can you explain this answer?
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Which one of the following is/are not true with reference to a thyristor?1. Latching current (IL) is associated with the turn-off process and holding current (IH) with the turn-on process.2. Holding current is associated with the turn-off process and latching current with the turn-on process3. A thyristor can be termed as an AC switcha)Both 1 & 2 are correct.b)Only 2 & 3 are correctc)Only 2 is correctd)Only 1 is correctCorrect answer is option 'C'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about Which one of the following is/are not true with reference to a thyristor?1. Latching current (IL) is associated with the turn-off process and holding current (IH) with the turn-on process.2. Holding current is associated with the turn-off process and latching current with the turn-on process3. A thyristor can be termed as an AC switcha)Both 1 & 2 are correct.b)Only 2 & 3 are correctc)Only 2 is correctd)Only 1 is correctCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following is/are not true with reference to a thyristor?1. Latching current (IL) is associated with the turn-off process and holding current (IH) with the turn-on process.2. Holding current is associated with the turn-off process and latching current with the turn-on process3. A thyristor can be termed as an AC switcha)Both 1 & 2 are correct.b)Only 2 & 3 are correctc)Only 2 is correctd)Only 1 is correctCorrect answer is option 'C'. Can you explain this answer?.
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