The Force Per Unit Length Between Two Current-Carrying Wires Is $\mu$

question 71

Multiple Choice

The force per unit length between two current-carrying wires is expressed as where I is the current,d the separation of the wires,and l the length of each wire.A plot of force per unit length versus I² gives a straight line,the slope of which is

• A)\(\mu\)₀
• B)F/l
• C)(2\(\pi\)d/\(\mu\)₀)^1/2
• D)\(\mu\)₀/2\(\pi\)d
• E)FI²/l

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Definitions:

Datum Feature Symbol

A symbol used in geometric dimensioning and tolerancing to specify a reference for measurements.

MMC

Maximum Material Condition; a feature size where it contains the maximum amount of material within the stated limits of size.

Perpendicularity

The state or condition of being perpendicular, meaning two lines or planes intersect at a right angle (90 degrees) to each other.

Tolerance of Form

Specifies the allowable deviation from the ideal shape of an object without specifying size, ensuring parts fit together correctly.