Resistors can resist with different strengths. The way they are built will dictate how much they resist.

We can tell the resistance of a resistor by reading its 4 or 5 band code:

In the first resistor above the bands are yellow, purple, orange and Gold.

1st band: 1st Digit (it's yellow so first digit is 4)

2nd band: 2nd Digit (it's purple, so second digit is 7)

3rd band: The multiplier (it's orange so multiply by 1000)

Last band: The tolerance (it's gold so tolerance is 5%).

This means that the first resistor resists with 47000 ohms at a tolerance of 5%.

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Very expensive resistors have lower tolerances (like 1% or 2%).

It might be helpful to watch this short video:

Your task now is to complete this worksheet using the resistors below for each example.