Digital Computer Electronics
An OR gate can be imagined as

switches connected in series
MOS transistors connected in series
All of these
None of these
switches connected in parallel

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Digital Computer Electronics
A p- channel enhancement type MOSFET performs much the same function as a PNP transistor, except that

None of these
it operates much faster
it is controlled by current rather than by voltage like a bipolar transistor.
it is considerably larger
it is controlled by voltage rather than by current, so that it requires very little current at the control terminal

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