Home Physics Current Electricity Grouping of Resistances The colour sequence in a carbon resistor is …
Physics Current Electricity Grouping of Resistances MCQ (Single Correct)

The colour sequence in a carbon resistor is red, brown, orange and silver. The resistance of the resistor is

A
21 × × 10 3 ± ± 10%
B
23 × × 10 1 ± ± 10
C
21 × × 10 3 ± ± 5%
D
12 × × 10 3 ± ± 5%

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Text Solution

Verified by Experts
The correct answer is:
A

Red, brown, orange, silver red and brown represents the first two significant figures.

Significant figures

Multiplier

Tolerance

      Red                      Brown        

Orange

Silver

              2                                    1

103

±± 10%

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