General exam question G6A06
Subelement G6, CIRCUIT COMPONENTS· Group G6A
Why should wire-wound resistors not be used in RF circuits?
- A.The resistor’s tolerance value would not be adequate
- B.The resistor’s inductance could make circuit performance unpredictable (correct answer)
- C.The resistor could overheat
- D.The resistor’s internal capacitance would detune the circuit
WhyWire-wound resistors should not be used in RF circuits because the resistor's inductance could make circuit performance unpredictable. A wire-wound resistor is literally a coil of resistance wire, so it carries meaningful inductance, and at RF that inductance's reactance can add unpredictable impedance the circuit designer didn't intend, answer B. Tolerance and overheating aren't the specific RF problem with wire-wound construction, and it's the resistor's inductance, not an internal capacitance, that causes the trouble, so A, C, and D are wrong.
Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2023-2027 NCVEC Element 3 pool (public domain); the explanation above is original writing, see our methodology.
Related questions
- G6A01What is the minimum allowable discharge voltage for maximum life of a standard 12-volt lead-acid battery?
- G6A02What is an advantage of batteries with low internal resistance?
- G6A03What is the approximate forward threshold voltage of a germanium diode?
- G6A04Which of the following is characteristic of an electrolytic capacitor?
- G6A05What is the approximate forward threshold voltage of a silicon junction diode?