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Author Topic: Tolerance band in a resistor????  (Read 1855 times)

zara

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Tolerance band in a resistor????
« on: April 11, 2009, 01:56:45 pm »
hey,
ny1 studyin IGCSE DnT can plzz tll m d purpose of a tolerance band in the resistor ???
i hv no clue to it.....
n i need d answer urgently...plzzzzz
Thanks..
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Offline astarmathsandphysics

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Re: Tolerance band in a resistor????
« Reply #1 on: April 11, 2009, 02:03:12 pm »
It is a measure of how accurate the stated resistance is. Normally a resistance has 3 or 4 bands. The 1st 3 show the value of the resistance. If there is no 4th band the accuracy is +-20%, a silver 4th band means an accuracy of +-10% and a gold band +-5%.
« Last Edit: April 11, 2009, 02:08:14 pm by astarmathsandphysics »
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Offline ashgerrard

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Re: Tolerance band in a resistor????
« Reply #2 on: April 11, 2009, 02:39:32 pm »
Do we have to know it in our IGCSE physics syllabus??
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Offline astarmathsandphysics

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Re: Tolerance band in a resistor????
« Reply #3 on: April 11, 2009, 03:02:31 pm »
Beats me. I only answer the maths and physics questions.
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Offline sweetsh

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Re: Tolerance band in a resistor????
« Reply #4 on: April 11, 2009, 03:11:41 pm »
I dont think it is in IGCSE Physics syllabus..
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zara

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Re: Tolerance band in a resistor????
« Reply #5 on: April 11, 2009, 04:54:14 pm »
Thanks astarmathsandphysics for d answer.....
n its not in IG physics syllabus its in IG design and technology syllabus....
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