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Colour Coding of Resistors

A carbon resi...

Question

A carbon resistor is marked in clour bands of red, black, orange and silver. What is the resistance and tolerence value of the resistor?

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Solution

$R e s i s t a n c e = 20 \times 10^{3} Ω$
$T o l e r e n c e v a l u e = 10 p e r c e n t$
The first two rings from left end indicates the first two significant figures of resistance in ohms, the third ring indicates the number of zeros that must be put after two figures, the fourth ring indicates the tolerance value in percentage.
$[R e d - 2, B l a c k - 0, O r a n g e - 10^{3}, S i l v e r - 10 p e r c e n t]$

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