Extra exam question E7B06
Subelement E7, PRACTICAL CIRCUITS· Group E7B
E7B06
What is a characteristic of a grounded-grid amplifier?
- A.High power gain
- B.Low input impedance (correct answer)
- C.High electrostatic damage protection
- D.Low bandwidth
WhyA grounded-grid amplifier has low input impedance. A grounded-grid amplifier has low input impedance, since the input signal is applied to the cathode with the grid held at RF ground, a very different impedance situation from a grounded-cathode design, answer B. High power gain, high electrostatic damage protection, and low bandwidth aren't the defining characteristic this question is asking about.
Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2024-2028 NCVEC Element 4 pool (public domain); the explanation above is original writing, see our methodology.
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