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K5-32. Resistance Vs Diameter And Length

Purpose

To determine how resistance varies a function of diameter and length for the same material.

Equipment

Digital meter, nichrome wires of 0.0125' and 0.0250' diameter with clip leads and projection mount.

Images

k5-32

Description

The resistance of two wires of the same length but different diameter can be compared. The resistance as a function of length can be determined by sliding the clips along the wire. Use of high-resistance nichrome wire keeps stray resistance (in contacts, etc.) small compared with the resistance being measured. ◙

K. Electromagnetic Principles

K. Electromagnetic Principles

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