BMET: Electronics- basic electrical components and resistor color codes

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module 4

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45 Terms

1
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What is a Capacitor? Its symbol?

A device which stores electrical energy. Commonly used for filtering out voltage spikes

<p><span><span>A device which stores electrical energy. Commonly used for filtering out voltage spikes</span></span></p>
2
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<p>What is this</p>

What is this

Capacitor

3
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<p>What is this</p>

What is this

Capacitor

4
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What is a Diode? Its symbol?

An electrical device that will allow current to pass through itself in one direction only

<p><span><span>An electrical device that will allow current to pass through itself in one direction only</span></span></p>
5
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<p>What is this</p>

What is this

Diode

6
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<p>What is this</p>

What is this

Diode

7
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What is a Fuse? Its symbol?

A replaceable safety device for an electrical circuit.

When an overload occurs in the circuit, the wire or metal strip melts, breaking the circuit

<p><span><span>A replaceable </span><strong><span>safety device</span></strong><span> for an electrical circuit. </span></span></p><p><span><span>When an overload occurs in the circuit, the wire or metal strip melts, breaking the circuit</span></span></p>
8
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<p>What is this?</p>

What is this?

Fuse

9
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<p>What is this</p>

What is this

Fuse

10
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What is an IC Circuit?

An electronic circuit which utilizes resistors, capacitors, diodes, and transistors to perform various types of operations. The two major types are Analog and Digital Integrated Circuits

<p><span><span>An electronic circuit which utilizes resistors, capacitors, diodes, and transistors to perform various types of operations. The two major types are Analog and Digital Integrated Circuits</span></span></p>
11
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<p>What is this</p>

What is this

IC Circuit

12
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<p>What is this</p>

What is this

IC Circuit

13
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What is an Inductor?

A coil of wire wrapped around an iron core

<p><span><span>A coil of wire wrapped around an iron core</span></span></p>
14
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<p>What is this</p>

What is this

Inductor

15
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<p>What is this</p>

What is this

Inductor

16
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What is a Light Emitting Diode?

A solid-state display device that emits light when a forward-biased current flows through it.

<p>A solid-state display device that emits light when a forward-biased current flows through it.</p>
17
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<p>What is this</p>

What is this

Light Emitting Diode

18
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<p>What is this</p>

What is this

Light Emitting Diode

19
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What is a Potentiometer?

A variable resistor used as a voltage divider.

20
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<p>What is this</p>

What is this

Potentiometer

21
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What is a Resistor?

A device usually made of wire or carbon which presents a resistance to current flow

<p><span><span>A device usually made of wire or carbon which presents a resistance to current flow</span></span></p>
22
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<p>What is this</p>

What is this

Resistor

23
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<p>What is this?</p>

What is this?

Resistor

24
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What is a Switch?

A device which opens or closes electrical pathways in an electrical circuit

<p><span><span>A device which opens or closes electrical pathways in an electrical circuit</span></span></p>
25
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<p>What is this?</p>

What is this?

Switch

26
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<p>What is this?</p>

What is this?

Switch

27
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What is a transformer?

A device that transfers voltage from one coil to the next through electromagnetic induction. Depending upon the number of windings per coil, a transformer can be designed to step - up or step - down its output voltage from its input voltage. Transformers can only function with alternating currents.

28
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<p>What is this</p>

What is this

Transformer

29
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<p>What is this?</p>

What is this?

Transformer

30
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What is a Transistor?

A device constructed of semi - conductors that is used in circuits to control a larger current by using a smaller current for operation. Its function is the same as a relay

31
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<p>What is this?</p>

What is this?

Transistor

32
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<p>What is this?</p>

What is this?

Transistor

33
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<p>What is this</p>

What is this

DC voltage source

34
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<p>What is this</p>

What is this

AC voltage source

35
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<p>What is this</p>

What is this

And Gate

36
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<p>What is this</p>

What is this

Nand gate

37
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<p>What is this</p>

What is this

Or gate

38
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<p>What is this</p>

What is this

Nor gate

39
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<p>What is this</p>

What is this

Xor gate

40
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<p>What is this </p>

What is this

Inverter (not gate)

41
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In a banded resistor, what does the 1st band represent?

The first digit of the resistor value

<p>The first digit of the resistor value</p>
42
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In a banded resistor, what does the 2nd band represent?

The second digit of the resistor value

<p>The second digit of the resistor value</p>
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In a banded resistor, what does the 3rd band represent?

the multiplier, which adjusts the decimal place to convert values from megaohms to milliohms and everything in between

<p><span><span>the</span><strong><span> multiplier</span></strong><span>, which adjusts the decimal place to convert values from megaohms to milliohms and everything in between</span></span></p>
44
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In a banded resistor, what does the 4th band represent?

the tolerance level

<p><span><span>the tolerance level</span></span></p>
45
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if a banded resistor is missing the 4th band, what is the default tolerance value?

±20%