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Electronics Engineering Objective Questions { FET and FET Amplifiers }



8. FETs have similar properties to
A. PNP transistors
B. NPN transistors
C. thermionic valves
D. unijunction transistors
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9.  Which statement about MOSFET is false? It can operate in
A. depletion mode
B. enhancement mode
C. depletion and enhancement modes
D. depletion-only mode
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10.  In a JFET, the point of reference is usually
A. drain
B. source
C. gate
D. either (b) or (c)
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11.  In a JFET, the primary control on drain current is exerted by
A. channel resistance
B. size of depletion regions
C. voltage drop across channel
D. gate reverse bias
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12.  After Nips reaches pinch-off value Vp in a JFET, drain current ID becomes
A. zero
B. low
C. saturated
D. reversed
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13. In a JFET, drain current in maximum when VGs is
A. zero
B. negative
C. positive
D. equal to Vp
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14. A JFET can be cut-off with the help of
A. VGs
B. VDS
C. VDG
D. VDD
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