You Are Given a Copper Bar of Dimensions 3 Cm

question 205

Multiple Choice

You are given a copper bar of dimensions 3 cm × 5 cm × 8 cm and asked to attach leads to it in order to make a resistor.If you want to achieve the largest possible resistance,you should attach the leads to the opposite faces that measure

• A)3 cm × 5 cm.
• B)3 cm × 8 cm.
• C)5 cm × 8 cm.
• D)Any pair of faces produces the same resistance.

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Definitions:

Method of Substitution

A technique used to solve systems of equations where one equation is solved for one variable, which is then substituted into other equations.

Hyperbola

A type of smooth curve lying in a plane, defined by its geometric properties or by equations that are not necessarily of the second degree. Specifically, it refers to a conic section that is not a circle, ellipse, or parabola.

Center and Vertices

Terms related to conic sections; the center is a central point of the shape, while vertices are points where the curve intersects its principal axis.

Graph Equations

The process of plotting the solutions to an equation on a graph, typically within a coordinate system.