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Current Electricity question

2020 · Q135
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Current Electricity question

2020 · Q135

NEETPhysicsCurrent ElectricityMCQ+4 / −1
The color code of a resistance is given below :
NEET 2020 Phase 1 Physics - Current Electricity Question 34 English
The values of resistance and tolerance, respectively, are
  1. A
    47 kΩ\OmegaΩ , 10%
  2. B
    4.7 kΩ\OmegaΩ , 5%
  3. C
    470 Ω\OmegaΩ , 5%
  4. D
    470 kΩ\OmegaΩ , 5%
View written solutionFree

Correct answer: C

As per colour coding Short explanation must be given to understand the trick
Yellow = 4; Violet = 7 ; Brown = 1
Tolerance for Gold is 5%

First colour gives first digit, second colour gives the second digit and third colour gives the multiplier and fourth colour gives tolerance.

∴\therefore∴ Resistance R = 47×101±5%=470±5%47 \times {10^1} \pm 5\% = 470 \pm 5\% 47×101±5%=470±5%

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