A) Manganese oxide and iron sulphide B) Manganese nitride and iron sulphide C) Manganese oxide and iron oxide D) Manganese nitride and iron oxide. Ans : (C)
A) Magneto-calorisation B) Magnetostriction C) Magnetic expansion D) Magnetic hysteresis. Ans : (B)
A) superconductors B) ferrimagnetic materials C) high energy hard magnetic materials D) ferromagnetic materials. Ans : (A)
A) Increase B) Decrease C) Not change D) Increase or decreases depending on the superconductor material. Ans : (A)
A) Zinc oxide B) Lead sulphide C) Barium oxide D) Caesium antimode. Ans : (B)
A) Heisenberg,s uncertainty principle B) Pauli’s exclusion principle C) Bose-Einstein statistics D) Maxwell-Boltzmann statistics. Ans : (B)
A) the lower oxidation rate at elevated temperatures B) the poor strength-to-weight ratio C) the difficulty in attaining and maintaining extremely low temperature D) very difficult to form, machine or cast. Ans : (C)
A) Flux quantization experiments B) Isotope effect C) Josephson effect D) Meissner effect. Ans : (B)
A) the carrier concentration increases B) the mobility of carrier increases C) both carrier concentration and mobility increases D) the band gap decreases. Ans : (C)
A) is positive B) is negative C) is zero D) changes its sign based on application of magnetic field. Ans : (B)