In Silicon Controlled Rectifier (SCR):

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RRB ALP Mechanic Radio & TV 23 Jan 2019 Official Paper (Shift 3)
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  1. holding current > latching current
  2. holding current < latching current
  3. holding current = latching current
  4. holding current = 0.6 V/ forward resistance

Answer (Detailed Solution Below)

Option 2 : holding current < latching current
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Key Points Latching Current: It is the minimum anode current required to maintain the thyristor in the ON state immediately after a thyristor has been turned on and the gate signal has been removed.

Holding Current: It is the minimum anode current to maintain the thyristor in the on-state. 

Latching current is always greater than holding current.

Additional Information The thyristor or SCR is a power semiconductor device which is used in power electronic circuits.

They work like a bistable switch and it operates from nonconducting to conducting.

The designing of thyristors can be done with 3-PN junctions and 4 layers.

It includes three terminals namely anode, gate, and cathode. 

F1 Vinanti Engineering 18-11-22 D5

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