What will be the assumptions for the following task: Resistors are one of the fundamental building blocks of electric circuits and can be found in just about every electrical/electronic circuit in existence. Their purpose is to impede the current flow in an electrical circuit. The relationship between voltage, current and resistance in a circuit is defined by 'Ohm's Law:'IRV = where V is the voltage (in Volts), I is the current (in Amperes) and R is resistance (in Ohms). For through-hole type resistors, where the legs of a resistor are inserted through a printed circuit board (PCB) and soldered onto the under-side of the board, a colour-code is utilised to allow people to determine the value and tolerances of a resistor. There are two main types of resistor colour codes; 4-band codes and 5-band codes. For the four band codes the colours show the following: - The first and second colours refer to the first two numbers of the resistor value. - The third band is the multiplier and - The last band is the tolerance. 3 In the 5-band case the colours are similar: - The first, second and third colour bands now represent the first three numbers in