Question

A stereo amplifier creates a 2.5 V potential difference across a speaker. To double the power output of the speaker, the amplifier's potential difference must be increased to 3.5 V 7.1 V 6.3 V 5.0 V

          A stereo amplifier creates a 2.5 V potential difference across a speaker.
To double the power output of the speaker, the amplifier's potential difference must be increased to
3.5 V
7.1 V
6.3 V
5.0 V

Added by Vanesa C.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Supreeta N

04/27/2023

Step 1

Step 1: The power dissipated by a resistor (or speaker) is given by $P = \frac{V^2}{R}$, where $P$ is the power, $V$ is the voltage, and $R$ is the resistance. Show more…

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A stereo amplifier creates a 2.5 V potential difference across a speaker. To double the power output of the speaker, the amplifier's potential difference must be increased to 3.5 V 7.1 V 6.3 V 5.0 V