Sound Energy Relating to the Loudness of a Sound Is

question 721

Multiple Choice

Sound energy relating to the loudness of a sound is usually expressed in

• A)cycles per second.
• B)pitch.
• C)decibels.
• D)centimeters per linear foot.

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Definitions:

Magnetic Flux

Magnetic flux refers to the measure of the quantity of magnetism, considering the strength and the extent of a magnetic field.

Pole Polarity

Refers to the magnetic polarity (north or south) of the poles in a magnetic field, crucial in the functioning of electric motors and generators.

Lines of Magnetic Flux

Imaginary lines representing the strength and direction of a magnetic field, where the density of lines indicates the field's intensity.

Synchronous Speed

The speed at which the magnetic field in an AC motor rotates, dependent on the frequency of the supply current and the number of poles in the motor.