Question

the resistence of a given resistor is 2K ohm . what is the colour combination?

Answer 1

For a four band colour code it will be Red Black Black Brown.
The resistance is 2000$\Omega$. The first band is red which represents the number 2. The next two bands are black to represent two 0's. The fourth is the multiplier. It is brown to represent 10$\Omega$. So the colour code represents,
$200\times 10\Omega =2000\Omega$