Input resistance of a FET is very high due to
A) gate-source junction is reverse-biased B) drain-source junction is reverse-biased
C) forward-biased junctions have high impedance D) none of the above
A
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What did early commercial and industrial control systems use to maintain the temperature in a structure, zone, or room?
What will be an ideal response?
Technician A says that mechanical cleaning with scrapers or wire brushes can be used to remove deposits. Technician B says that steel wire brushes can be used to clean aluminum parts. Who is right?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
It is acceptable to vent a gas appliance through a masonry chimney as long as _____
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If the output of an astable 555 timer is LOW for 2.85 ?s and HIGH for 6.7 ?s, the duty cycle is
A) 57% B) 52% C) 70% D) 90%