A JFET has IDSS= 20 mA. At what gate source voltage (VGS) will it`s drain current be 5 mA, it`s pinch off voltage is 4.2 V

Question

Khimraj · Answer

Formula of drain current I D = I DSS (1 – V GS /V P ) 2 Given that I D = 5mA, I DSS = 20mA, V P = 4.2 V I D /I DSS = (1 – V GS / 4.2 ) 2 ¼ = (1 – V GS /4.2) 2 ½ = (1 – V GS /4.2) 0.5*4.2 = 4.2 – V GS V GS = 4.2 – 2.1 = 2.1V. Hope it clears. If you like answer then please approve it.

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A JFET has IDSS= 20 mA. At what gate source voltage (VGS) will it`s drain current be 5 mA, it`s pinch off voltage is 4.2 V

A JFET has IDSS= 20 mA. At what gate source voltage (VGS) will it`s drain current be 5 mA, it`s pinch off voltage is 4.2 V

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A JFET has IDSS= 20 mA. At what gate source voltage (VGS) will it`s drain current be 5 mA, it`s pinch off voltage is 4.2 V

A JFET has IDSS= 20 mA. At what gate source voltage (VGS) will it`s drain current be 5 mA, it`s pinch off voltage is 4.2 V

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