State PCS PYQPrelims 2018

UPPCS · પ્રશ્ન 64

Which of the following elements is a semi conductor?

  1. Aluminium
  2. Silicon
  3. Silver
  4. Lead
જવાબ બતાવો અને સમજૂતી

જવાબ: (B) Silicon

સમજૂતી

Silicon (like germanium) is a semiconductor. Aluminium, silver and lead are metallic conductors.