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Karnataka Board PUCPUC Science Class 11

Consider an Amplifier Circuit Using a Transistor. the Output Power is Several Times Greater than the Input Power. Where Does the Extra Power Come From?

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Question

Consider an amplifier circuit using a transistor. The output power is several times greater than the input power. Where does the extra power come from?

Short/Brief Note
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Solution

The amplifier takes this energy from the power supply. Amplifiers take the energy from the power supply and control the output to match with the input signal but with greater amplitude.

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Chapter 45: Semiconductors and Semiconductor Devices - Short Answers [Page 417]

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HC Verma Concepts of Physics Volume 1 and 2 [English]
Chapter 45 Semiconductors and Semiconductor Devices
Short Answers | Q 11 | Page 417
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