The GATE Grind

GATE 2023 MT – Question 43

Materials Science and Non-Metallic Materials · Electronic and magnetic properties · 2 marks · Multiple choice

Match materials with their classes.

Column I:

P. Gallium arsenide

Q. Barium titanate

R. Iron–4 wt.% silicon

S. Yttrium–barium–copper oxide

Column II:

1. Superconductor

2. Soft magnetic material

3. Semiconductor

4. Piezoelectric material

  1. P – 3, Q – 4, R – 2, S – 1
  2. P – 2, Q – 4, R – 3, S – 1
  3. P – 3, Q – 2, R – 1, S – 4
  4. P – 4, Q – 2, R – 1, S – 3

Practise this question in The GATE Grind →

Show answer and explanation

Correct answer: (A) P – 3, Q – 4, R – 2, S – 1

Explanation

GaAs is a semiconductor (P3), BaTiO3 a piezoelectric/ferroelectric ceramic (Q4), silicon steel a soft magnetic material (R2), and YBCO a high-temperature superconductor (S1). The resulting combination is **A**.