NEET 2023
- Exam
- NEET
- Year
- 2023
- Subject
- Physics
- Chapter
- Current Electricity
NEET 2023 · Physics · Current Electricity
Resistance of a carbon resistor determined from colour codes is (...
Resistance of a carbon resistor determined from colour codes is () . The colour of the third band must be :
Options
- AYellow
- BRed
- CGreen
- DOrange
Correct answer
D. Orange
Step-by-step solution
Resistance using the colour codes is written as
R=[(numbers)×(multiplier) ±(tolerance(%))].Colour 1: First significant figure
Colour 2: Second significant figure
Colour 3: Decimal multiplier
Colour 4(or no colour): ToleranceFor the given case:
Resistance can be written as = \left[\left(22 \times {10}^{3}\right) \pm 5 %\right]Ω.
Colour of the third band corresponds to decimal multiplier which is , hence colour is Orange.