Mixed Format $$E _ { L I N E } = \sqrt { E _R ^ { 2 } + E_ X ^ { 2 } }$$

question 17

Short Answer

Mixed format: $$E _ { L I N E } = \sqrt { E _R ^ { 2 } + E_ X ^ { 2 } }$$ (with a space between the whole number and the numerator) Fraction format: $1 /4$
Reduce all fractions. A 75-watt, 120-volt light uses $$\begin{aligned}f = \frac { P N } { 60 } \quad \text { where } & f = \text { frequency in hertz } \\P & = \text { number of pairs of poles } \\N & = \text { revolution per minute }\end{aligned}$$ ampere. How many amperes are used by the 5 lights connected in parallel?

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Definitions:

Holden V. Hardy

Holden v. Hardy was a landmark 1898 United States Supreme Court case that upheld laws regulating labor, recognizing the state's interest in protecting workers' health and welfare.

Incandescent Bulb

A type of electric light bulb that produces light by heating a filament wire to a high temperature until it glows.

Thomas Edison

An American inventor and businessman known for developing many devices that greatly influenced life around the world, including the phonograph and the electric light bulb.