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Computer Science - Digital Computer Electronics - Discussion

Discussion Forum : Digital Computer Electronics - Section 1 (Q.No. 11)
Digital Computer Electronics
11.
A p- channel enhancement type MOSFET performs much the same function as a PNP transistor, except that
it operates much faster
it is considerably larger
it is controlled by voltage rather than by current, so that it requires very little current at the control terminal
it is controlled by current rather than by voltage like a bipolar transistor.
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
1 comments Page 1 of 1.
Anjali said:   9 years ago
FET is voltage controlled current device and BJT is current controlled voltage device. Input impedance of FET is high and BJT has low so FET is voltage controlled and BJT is current controlled. Rem. - VCVS- Rin=infinite, Rout=0 VCCS- Rin=infinite, Rout=infinite CCVS-Rin=0, Rout=0 CCCS-Rin=0, Rout=infinite.
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