Common Data Questions: 48 & 49 The channel...

Common Data Questions: 48 & 49

The channel resistance of an N-channel JFET shown in the figure below is 600\(\Omega\)
when the full channel thickness (tch) of 10μm is available for conduction. The
built-in voltage of the gate P+ N junction (Vbi) is -1 V. When the gate to source
voltage (VGS) is 0 V, the channel is depleted by 1μm on each side due to the builtin
voltage and hence the thickness available for conduction is only 8μm

Q.49 The channel resistance when VGS = 0 V is

(A) 480\(\Omega\)

(B) 600\(\Omega\)

(C) 750\(\Omega\)

(D) 1000\(\Omega\)


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