2nd PUC Physics Series-9 December 3, 2020December 23, 2020wefru PUC Science 2nd Year Physics Series-9 quiz 1 Created on December 02, 2020 By wefru 2nd PUC Physics Series 9 TEST YOUR KNOWLEDGE OF SCIENCE 1 / 10 81. A galvanometer acting as a volt meter will have with its coil. a high resistance in parallel a high resistance in series a low resistance in parallel a low resistance in series 2 / 10 82. When three identical bulbs of 60 W, 200 V rating are connected in series to a 200 V supply, the power drawn by them will be: 20 W 70 W 80 W 0 W 3 / 10 83. n resistances, each of R Ω, are connected in parallel gives an equivalent resistance of R Ω. If these resistances were , connected in series, the combination would have a resistance in Ω is equal to n²R R/n² R/n nR 4 / 10 84. Why is the Wheatstone bridge more accurate than other methods of measuring resistances: ‘ It is a null method It is based on Kirchhoffs laws It has four resistances It does not involve ohm’s law 5 / 10 85. A potential difference of 10 V is applied across a conductance of 2 S. The current in the conductor will be : 20 A 30 A 40 A 50 A 6 / 10 86. Ohm’s law is valid when the temperature of conductor is : very low very high varying constant 7 / 10 87 The emf of a car battery is about: 12V 0V 25V 36V 8 / 10 88. Emf is measured in : joule joule/coulomb joule-coulombs joule/coulomb/metre 9 / 10 89. 1 kilowatt hour is commonly known as : unit 1 faraday 1 curie None of these 10 / 10 90. How many joules are equal to I kWh ? 3.6 × 106 7 × 106 86 × 106 0 Your score isThe average score is 30% LinkedIn Facebook Twitter VKontakte 0% Restart quiz