Amplifiers | Baamboozle - Baamboozle | The Most Fun Classroom Games!

The "Gain" of an amplifier refers to the ratio of output signal to input signal.

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lifesaver

Give 10 points!

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True or False: An amplifier creates new energy out of thin air to make a signal louder.

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trap

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Take 25 points!

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Other team loses 5 points!

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What are two advantages of a Class D amplifier over a Class A amplifier?

They are much more efficient and produce significantly less heat.

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Amplifiers can be found in devices other than just guitar amps and stereos.

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What is the main difference between a Transistor and a Vacuum Tube amplifier?

Transistors use semiconductor material (solid-state), while tubes use heated filaments in a glass vacuum.

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What is the purpose of a Heat Sink in a high-power amplifier?

To dissipate the heat generated by the transistors or tubes to prevent the components from burning out.

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What does "Clipping" look like on an oscilloscope, and what causes it?

The top and bottom of the waveform look "flat" or cut off. It happens when the amplifier is pushed beyond its maximum voltage capability.

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Name three common "Classes" of amplifiers.

Class A, Class B, Class AB, Class C, or Class D.

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What are the three main terminals of a Bipolar Junction Transistor (BJT) used in amplifying?

Emitter, Base, and Collector.

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A pre-amplifier is usually the very last stage in an audio system before the speakers.

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What do we call the "efficiency" of an amplifier?

The ratio of useful power output to the total power drawn from the supply.

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Which specific type of amplifier is designed to only amplify very low frequencies, usually below 200 Hz?

A Subwoofer Amplifier (often used in car audio or home theaters).

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In an amplifier, what is the "Signal-to-Noise Ratio" (SNR)?

A measure that compares the level of a desired signal to the level of background noise. (The higher the ratio, the cleaner the sound).

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