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Railways PYQCBT 2 2017

RRB NTPC · Question 64

Silicon is a commonly used as a _____.

  1. Semi-conductor

  2. Conductor

  3. Amplifier

  4. Insulator

Show answer & explanation

Answer: (A) Semi-conductor

Explanation

Silicon is the most widely used semiconductor, the base material for chips, transistors and solar cells.