Physics · Semiconductor Electronics
A transistor amplifier increases the power of a signal without violating the law of conservation of energy. Why?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The base current directly supplies the additional output energy.
- 2The semiconductor crystal generates electrical energy internally.
- 3The external DC power supply provides the amplified output energy controlled by the input signal.✓
- 4The p-n junction stores and releases electrical energy.
Correct answer
The external DC power supply provides the amplified output energy controlled by the input signal.
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