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A Bluetooth speaker used 573 J of energy while playing music. If it produces 356 J of sound energy, what is the efficiency of the speaker in transforming electrical energy into sound energy? Show all your work.

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onyebuchinnaji

Answer:

The efficiency of the Bluetooth speaker is 62.13 %.

Explanation:

Given;

input electrical energy of the Bluetooth speaker, = 573 J

output sound energy of the Bluetooth speaker, = 356 J

The efficiency of the Bluetooth speaker in transforming electrical energy into sound energy is given by;

[tex]Efficiency = \frac{0utput\ Energy}{1nput \ Energy} *100\% \\\\Efficiency = \frac{356}{573}*100 \% \\\\Efficiency = 62.13 \ \%[/tex]

Therefore, the efficiency of the Bluetooth speaker is 62.13 %.