Question

Name a material whose resistance

i) Decreases with increase in temperature

ii) Is independent of temperature

• A. i) Copper ii) Alloys like Constantan and Manganin
• B. i) Semiconductors like Graphite (carbon) and Silicon ii) Alloys like Lead and tin
• C. i) Metals like Copper and Silver ii) Alloys like Constantan and Manganin
• D. i) Non-Metals like Graphite (carbon) and Sulphur ii) Alloys like Monel Metal or Solder Metal
• E. i) Semiconductors like Graphite (carbon) and Silicon ii) Alloys like Constantan and Manganin

Answer 1

The correct option is E

i) Semiconductors like Graphite (carbon) and Silicon ii) Alloys like Constantan and Manganin

i) Semiconductors like Graphite (carbon) and Silicon

ii) Alloys like Constantan and Manganin