A) generating regions free from magnetic field B) generating electrostatic field C) reducing I2R losses D) generating very strong magnetic field. Ans : (D)
A) zero B) very high C) very low. Ans : (B)
A) Neel effect B) Villari effect C) Curie effect D) Thompson effect. Ans : (B)
A) crystal structure having infinite atomic vibrations at 0oK B) all electrons interacting in the super-conducting gate C) crystal structure having no atomic vibration at 0oK D) all electrons having fermi energy at 0oK. Ans : (C)
A) susceptibility is minimum B) susceptibility is maximum C) permeability is maximum D) permeability is minimum. Ans : (B)
A) transformer cores B) televisions C) transducers D) meters. Ans : (A)
A) 0, 13, 11 B) 11, 11, 13 C) 2, 11, 13 D) 3, 11, 13. Ans : (B)
A) a ball of 1.5875 mm is used B) a diamond cone of 136o is used C) a diamond cone of 120o is used D) a ball of 10 mm diameter is used. Ans : (D)
A) internal generation B) reflection of moon light C) bioluminiscence D) fluorescence. Ans : (C)
A) 132 kV B) 30 kV C) 5 kV D) 1000 V. Ans : (B)