Question: Why the gate to source voltage is not used in an N Channel Depletion type MOSFET? What is pinch off voltage and what happens to

Why the gate to source voltage is not used in an N Channel Depletion type MOSFET? What is pinch

off voltage and what happens to the drain to source current at this pinch

off voltage and what is to be done to increase the value of the drain to source current once if it reaches its saturation value? Explain the working of N Channel Depletion type MOSFET with the help of a neat sketch.

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