GENERAL SCIENCE (GENERAL STUDIES) Part-2Total Questions: 5041. The resistivity of a wire depends on –(a) length(b) area of cross-section(c) material(d) all the above three factorsCorrect Answer: (c) material42. Which of the following statements does not represent Ohm’s law(a) current/potential difference = constant(b) potential difference/current = constant(c) potential difference = current × resistance(d) current = resistance × potential differenceCorrect Answer: (b) potential difference/current = constant43. Fleming’s right hand rule is used to find the direction of the(a) Alternate current(b) Direct current(c) Induced current(d) Actual currentCorrect Answer: (c) Induced current44. The unit of electrical power is(a) Volt(b) Watt(c) Kilowatt hour(d) AmpereCorrect Answer: (b) Watt45. The resistance of the human body (dry condition) is of the order of(a) 10¹ Ohm(b) 10² Ohm(c) 10³ Ohm(d) 10⁴ OhmCorrect Answer: (d) 10⁴ Ohm46. Certain substances loose their electrical resistance completely at super low temperature. Such substances are called(a) super conductors(b) semi conductors(c) dielectrics(d) perfect conductorsCorrect Answer: (a) super conductors47. Fuse wire is made of –(a) platinum(b) copper(c) aluminium(d) alloy in tin and leadCorrect Answer: (d) alloy in tin and lead48. Which of the following terms does not represent electrical power in a circuit?(a) I²R(b) IR²(c) VI(d) V²/RCorrect Answer: (b) IR²49. Ampere-second stands for the unit of –(a) power(b) charge(c) emf(d) energyCorrect Answer: (d) energy50. Coulomb is equal to –(a) 1 amp × 1 sec(b) 1 amp/1 sec(c) 1 joule × 1 amp(d) 1 joule/1 secCorrect Answer: (a) 1 amp × 1 secSubmit Quiz« Previous12345
