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A 220 Ω resistor is connected in series with the gate of an SCR as shown in fig. The gate current required to fire the SCR is 7 mA. What is the input voltage (Vin) required to fire the SCR?
  • a)
    2.24 V
  • b)
    0.7 V
  • c)
    1.7 V
  • d)
    3.4 V
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
A 220 Ω resistor is connected in series with the gate of an SCR ...
The input voltage must overcome the junction voltage between the gate and cathode (0.7V) and cause 7 mA to flow through the 220 Ω resistor. According to Kirchhoff’s voltage law, Vin us given by:
Vin = VGK + IGR
= 0.7V + (7 mA) (220 Ω) = 2.24 V
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Most Upvoted Answer
A 220 Ω resistor is connected in series with the gate of an SCR ...
The input voltage must overcome the junction voltage between the gate and cathode (0.7V) and cause 7 mA to flow through the 220 Ω resistor. According to Kirchhoff’s voltage law, V
in
 us given by:

V
in
 = V
G
K + I
G
R

= 0.7V + (7 mA) (220 Ω) = 2.24 V
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A 220 Ω resistor is connected in series with the gate of an SCR as shown in fig. The gate current required to fire the SCR is 7 mA. What is the input voltage (Vin) required to fire the SCR?a)2.24 Vb)0.7 Vc)1.7 Vd)3.4 VCorrect answer is option 'A'. Can you explain this answer?
Question Description
A 220 Ω resistor is connected in series with the gate of an SCR as shown in fig. The gate current required to fire the SCR is 7 mA. What is the input voltage (Vin) required to fire the SCR?a)2.24 Vb)0.7 Vc)1.7 Vd)3.4 VCorrect answer is option 'A'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about A 220 Ω resistor is connected in series with the gate of an SCR as shown in fig. The gate current required to fire the SCR is 7 mA. What is the input voltage (Vin) required to fire the SCR?a)2.24 Vb)0.7 Vc)1.7 Vd)3.4 VCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A 220 Ω resistor is connected in series with the gate of an SCR as shown in fig. The gate current required to fire the SCR is 7 mA. What is the input voltage (Vin) required to fire the SCR?a)2.24 Vb)0.7 Vc)1.7 Vd)3.4 VCorrect answer is option 'A'. Can you explain this answer?.
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