Question

Note: -
You are attempting question 1 out of 12
The gate characteristic of an SCR has a straight-line slope of 125. What should be the
gate-source resistance, if the source triggering voltage is 12 V and allowable value of
gate power dissipation is 0.65 watts.
(a) 450 22
(b) 291.362
(c) 41.462
(d) 83.542
Answer
ОА
B
C с
Submit​

Answer 1

Answer: c

Explanation: Vg/Ig = 130 .. (given)

Vg.Ig = 0.5 watts .. (given)

use both the given data & find the gate current.

Answer 2

Answer:

(c) 41.462

Explanation:

Vg/Ig = 125  (given)

Vg.Ig = 0.65 watts (given)

use both the given data & find the gate current.

Ig = 0.0721 A and Vg = 9.01V

Es = Vg + Ig*Rs

Es = 12V  (given)

so, Rs = 41.462 ohm