Test_Prep

ASVAB · Question #270

A crystal microphone uses

The correct answer is A. the piezoelectric effect. See the full explanation below for the reasoning.

Question

A crystal microphone uses

Options

Athe piezoelectric effect.
Bthe Doppler effect.
Cmagnetic wavicles to operate.
Da permanent magnet for resonance.

How the community answered

(48 responses)

A
85% (41)
B
8% (4)
C
2% (1)
D
4% (2)

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