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Compared with valves, semiconductor devices are:
ASmall and low power
BBulky and power hungry
CShort lived and unreliable
DHigh voltage devices
Answer & Solution
Correct answer: A. Small and low power
1. Valves are bulky, hot and need high voltages.
2. Semiconductor devices need no heating or vacuum.
3. They are small, low power and reliable.
_Source: NCERT Class 12 Physics Part II, Chapter 14, Semiconductor Electronics._
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