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Electrician Talk Forum
Teaching Electricity in Year 6 help
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<blockquote data-quote="kerching" data-source="post: 520790" data-attributes="member: 11861"><p>You need long bits of thin wire to make any observable change in res. A drum of alarm cable is useful,as it usually has 6 cores so you can connect them to give 100/200/300/400/500/600m of cable</p><p></p><p>you also need to zero your leads OR at the very least measure theirmresistance and deduct this value</p><p></p><p>in brief, and in terms that my daughter can understand as she is head of faculty,</p><p></p><p>long thin wire= hi resistance</p><p></p><p>short fat wire = low resistance</p></blockquote><p></p>
[QUOTE="kerching, post: 520790, member: 11861"] You need long bits of thin wire to make any observable change in res. A drum of alarm cable is useful,as it usually has 6 cores so you can connect them to give 100/200/300/400/500/600m of cable you also need to zero your leads OR at the very least measure theirmresistance and deduct this value in brief, and in terms that my daughter can understand as she is head of faculty, long thin wire= hi resistance short fat wire = low resistance [/QUOTE]
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