The colour sequence in a carbon resistor is red, brown, orange and silver. The resistance of the resistor is
A$21 \times 10^3 \pm 10\%$
B$23 \times 10^1 \pm 10\%$
C$21 \times 10^3 \pm 5\%$
D$12 \times 10^3 \pm 5\%$
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A$21 \times 10^3 \pm 10\%$
a (a) Red, brown, orange, silver red and brown represents the first two significant figures. $R$ = $21 \times {10^3} \pm 10\% $
significant figures
Multiplier
Tolerance
Red Brown
Orange
Silver
$2$ $1$
$10$
$\pm 10\%$
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