Electrical Resistors

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Last updated 3:09 AM on 4/19/26
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12 Terms

1
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What is a Resistor?

Electrical component, manufactured to have specific value of resistance

2
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Resistor symbol

Zigzag line or hollow box

<p>Zigzag line or hollow box </p>
3
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What are 2 types of Resistors?

Fixed value and variable

4
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Variable resistor symbol?

Zigzag line and hollow line with arrow passing through

<p>Zigzag line and hollow line with arrow passing through </p>
5
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What is potentiometers?

Used when the circuit flow is low; wide range of resistive values with limited current handling capability

6
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When is a Rheostat used?

When the circuit flow is high; Limited resistance range of values with high current handling capability

7
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What is power measured in?

Watts

8
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What is wattage rating?

Rating expressing maximum power that a device can safely handle

9
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What does the 3rd band in a resistor represent?

Multiplier

10
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What does the 4th band in a resistor represent?

Resistor tolerance (how long it can be used till it wears down)

11
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12
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