When the Volume Control on a Stereo System Is Increased

question 70

Multiple Choice

When the volume control on a stereo system is increased, the voltage across a loudspeaker changes from V ₁ to V ₂ , and the decibel increase is given by Find the decibel increase if the voltage changes from 1.8 volts to 4.1 volts.

• A)db = 10.2
• B)db = 5.3
• C)db = 14.8
• D)db = 8.7
• E)db = 6.4

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Definitions:

Straight-Line Depreciation

An approach to apportion the expense of a tangible resource over its effective life period in consistent annual installments.

Incremental Cash Flow

The additional cash flow a company receives from undertaking a new project, distinct from its existing cash flow.