A) atmospheric humidity B) room temperature C) shape of the article D) quantity of electricity. Ans : (D)
A) Van Allen’s laws B) Faraday’s laws C) Coulomb’s laws D) Ohm’s laws. Ans : (B)
A) 42 V B) 45 V C) 54 V D) 40 V Ans : (A)
A) ( E - V ) r B) 2 ( E-V/V ) r C) ( E-V/E ) r D) ( E-V/V ) r. Ans : (D)
A) All pins B) Gems clip C) Steel balls D) All of the above. Ans : (D)
A) 3 to 5 volts B) 6 to 16 volts C) 20 to 50 volts D) 50 to 200 volts. Ans : (B)
A) External resistance B) Internal resistance C) Electrolyte & electrodes D) Area of plates inside electrolyte. Ans : (C)
A) R < r B) R > r C) R = r D) none of the above. Ans : (C)
A) Zinc sulphate and dilute sulphuric acid B) Zinc chloride and ammonium hydroxide C) Zinc, sodium cyanide and sodium hydroxide solution D) any of the above. Ans : (C)
A) sodium cyanide, cadmium and caustic soda B) cadmium hexa meta phosphate C) cadmium sulphate and sulphuric acid D) any of the above. Ans : (A)