Since You Cannot Afford Expensive Cable to Hook Up Between

question 2

Multiple Choice

Since you cannot afford expensive cable to hook up between your loudspeaker and music amplifier, you try some common 14-gauge diameter = 1.628 mm) copper wire. If the total length of the wire there and back) used for each speaker to amplifier hookup was 10 m, then calculate the resistance in the wire for one channel ρ_Cu = 1.7 × 10^-8 Ω/m) .

• A) 2.6 × 10^-2 Ω
• B) 2.0 × 10^-2 Ω
• C) 4.1 × 10^-3 Ω
• D) 8.2 × 10^-2 Ω
• E) 1.6 × 10^-1 Ω

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Definitions:

Confounding Variables

External factors that can affect the outcome of an experiment, making it unclear whether the results are due to the independent variable or some other influence.

Dependent Variable

In an experiment, the outcome that is measured; the variable that may change when the independent variable is manipulated.

Experimental Treatment

Experimental treatment refers to new or untested medical interventions being studied for effectiveness and safety before becoming standard treatment options.

Correlational Research

A type of research method that examines the relationship between two or more variables without determining causality.