PAPER 2026 QUESTIONS WITH ANSWERS
GUARANTEED TO PASS
◉ What changes are necessary for amplification to occur? Answer:
Small change in base voltage, large change in collector current
◉ What amplifier has the best fidelity? Answer: class A
◉ What amplifier has the best efficiency? Answer: class C
◉ When an input is applied across the emitter to base PN Junction, what
is the relative resistance? Answer: low
◉ When an input is applied across the collector to base PN Junction,
What is the relative resistance? Answer: high, because it is reverse
biased
◉ The purpose of a transistor is to: Answer: control signals
◉ A cutoff transistor acts like it's: Answer: open
, ◉ What type of amplifier configuration has the input applied to the
emitter and the output taken from the collector? Answer: common base
◉ To determine the faulty component in a diode limiter or clamper; use
______________ Answer: resistance measurements
◉ The screen grid is located between which two electrodes? Answer:
plate and control grid
◉ The purpose of the screen grid is to reduce the amount of
_______________ Answer: inter electrode capacitance
◉ The suppressor grid reduces the effects of? Answer: secondary
emission
◉ How many electrodes does a pentode have? Answer: 5
◉ What electron-tube amplifier configurations provides a 180 degrees
phase shift from the input to the output? Answer: common cathode
◉ What component supplies the electrons for the electron beam?
Answer: cathode