The loudness of a sound is directly related to the energy of the sound wave. When the amplifier increases the energy of the electrical signal, the amplitude of the sound wave also increases. This results in louder sound from the loudspeaker. Although frequency affects pitch, energy (amplitude) is the factor that increases volume.
Loud speaker voice is increased due to ______?
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Question context
This question is part of 🖼️ Non Verbal Reasoning within the broader 🧠 Aptitude Mastery subject and appears in the PPSC Punjab Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.