ISRO Scientist or Engineer Electronics 2012 Question 6

Question 6

The following statements are made for FETs
1. In n-channel depletion mode MOSin the active region, the control voltage Veg is negative.
2. NMOSin depletion modeis cut off for $$V_{GS}$$=0
3. NMOSin enhance modeis cut off for $$V_{GS}$$=0
4. There is no path betweensource and drain in the enhancement mode
Of these, the true statementsare :



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