Resistors are passive two-terminal electrical components that implements electrical resistance as a circuit element. Each resistor has at least four colors on it. And those colors could be used as a code.
So, this resistor's first band is brown and is equal to 1. The second band is green and is equal to 5. So, we have 15. The third band is red and it is a multiplayer. Red multiplayer is x100. So Now we have 1500. And the fourth band is tolerance. Yellow does not include tolerance so this could be ignored. So our resistor is equal to 1500.