Question : At low temperatures, lead behaves as a:
Option 1: semiconductor
Option 2: superconductor
Option 3: insulator
Option 4: conductor
Latest: SSC CGL 2024 final Result Out | SSC CGL preparation tips to crack the exam
Don't Miss: SSC CGL Tier 1 Scorecard 2024 Released | SSC CGL complete guide
Suggested: Month-wise Current Affairs | Upcoming Government Exams
Correct Answer: superconductor
Solution : The correct option is a superconductor.
At low temperatures of 7.2 Kelvin, lead exhibits phase transitions towards superconductivity. In 1913, this finding was made. Lead's electrical resistivity falls to zero at this temperature, sometimes referred to as the critical temperature. The transition is so abrupt and complete that it seems to be a change in the state of matter.
Candidates can download this ebook to know all about SSC CGL.
Admit Card | Eligibility | Application | Selection Process | Preparation Tips | Result | Answer Key
Question : What do you call a component of identical size that offers a higher resistance to electricity?
Option 1: Poor conductor
Option 2: Semiconductor
Option 3: Good conductor
Option 4: Very good conductor
Question : In nuclear reactors, graphite is used as a / an
Option 1: Fuel
Option 2: Lubricant
Option 3: Moderator
Option 4: Insulator
Question : Percentage of lead in lead pencil is
Option 1: 0
Option 2: 31-66
Option 3: 40
Option 4: 80
Question : Which of the following is an insulator?
Option 1: Mercury
Option 2: Carbon
Option 3: Germanium
Option 4: Glass
Question : The material used in the manufacture of lead pencil is
Option 1: Graphite
Option 2: Lead
Option 3: Carbon
Option 4: MIca
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile