The highest possible value is 517 K. The lowest possible value is 423 K. The total range of possible resistances is almost 100K.

Resistors in parallel In a parallel circuit, the net resistance decreases as more components are added, because there are more paths for the current to pass through. The two resistors have the same potential difference across them. The current through them will be different if they have different resistances.

In series combination, resistors are connected in a single line to form a circuit, and the value of current flowing through each resistor is the same. The equivalent resistance (R) of a series combination is given by: R₁ + R₂ + R₃…. Rₙ. Hence, the value of resistance increases.

Use V/R to get I, and min I = V/ max R.

Standard resistors have four color bands. Three of the bands tell you the nominal value, which means the value the resistor was designed to have. The fourth band tells you the tolerance of the resistor, which indicates how far off the nominal value the actual resistance could be. The fifth band tells you the tolerance.

Resistance is measured in ohms, with symbol /Omega.

ohmmeters

Using zero ohm resistors reduce the cost of jumper wires insertion. For mass production, it’s important to keep the cost down. Using an additional machine for jumper wires results in a separate setup and process cost. Therefore, a zero-ohm resistor is the perfect alternative that saves cost and time in assembly.

A short circuit has 0 resistance. We use Ohm’s Law V=IR. If R=0, then V=0.

A zero-ohm resistor can be wire wound or it can be surface mount. For surface mount resistors, there wil be a ‘0’ on it indicating it is a zero-ohm resistor. You can see this on the image below. For wire wound resistors, there will be a single black color band around the body of the resistor.