Q 12-03-258JEE MainJEE Main 2019 (9 Jan, Shift 1)Easy
A carbon resistor has colour bands red, violet, orange and silver, in that order. Its value and tolerance are given respectively by
Answer: (A) $27\ \text{k}\Omega,\ 10\%$
Colour code: red $= 2$, violet $= 7$, orange $= $ multiplier $10^3$, silver $=$ tolerance $\pm10\%$.
$$R = 27\times10^3\ \Omega = 27\ \text{k}\Omega,\quad \pm10\%$$
Solution by Sreeraj P, M.Sc Physics