Question

Why only transistors are used in circuit boards why not anything else?

Answer 1

Answer:

transistor is a semiconductor device used to amplify or switch electronic signals and electrical power. ... Because the controlled (output) power can be higher than the controlling (input) power, a transistor can amplify a signal

Explanation:

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Answer 2

Answer:

A transistor is a semiconductor device used to amplify or switch electronic signals and electrical power.

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