ATT WEEK 5 ACTUAL EXAM PAPER 2026 QUESTIONS WITH ANSWERS GRADED A+

ATT WEEK 5 ACTUAL EXAM PAPER 2026
QUESTIONS WITH ANSWERS GRADED A+


◍ What is the purpose of a diode limiting circuit? Answer:To limit
amplitude of the input.


◍ What do clampers do? Answer:Add DC to AC signal.


◍ A transistor in a Common Emitter transfers an internal resistance from
a low resistance in emitter base to? Answer:High resistance in collector
base.


◍ Ie (Emitter current) = ? Answer:Ib (base current) + Ic (collector
current)


◍ When does cutoff occur in a Common Emitter? Answer:When Emitter
PN junction is reversed.


◍ A Common Emitter has a gain of how much? Answer:10


◍ How does a Common Emitter affect the phase of an input signal?
Answer:It inverts the input 180° (flip)

, ◍ A Common Collector has a gain of how much? Answer:1 (no phase
inversion)


◍ A Common Base has a gain of how much? Answer:10 (no phase
inversion)


◍ How do transistor amplifiers operate? Answer:By an AC input signal
changing base bias.


◍ The component that develops bias for a transistor part is directly
connected to the_________. Answer:Corresponding transistor part.


◍ In a Common Emitter, if base voltage (base bias) increases, emitter
current does what? Answer:Increases.


◍ A small input controls a__________. Answer:Large output


◍ What is the most common type of Multi-stage Amplifier? Answer:RC
(Resistive-capacitive)


◍ What is the purpose of Cascade amplifiers? Answer:To increase Av
(Voltage Gain)