1st PUC physics Series-10 December 3, 2020December 23, 2020wefru PUC Science 1st Year Physics Series-10 quiz 0 Created on December 02, 2020 By wefru 1st PUC Physics Series 10 TEST YOUR KNOWLEDGE OF SCIENCE 1 / 10 Q.91 In A.C generator increasing the no. of turns in the coil Decreases the Electromotive force (EMF) Increases the Electromotive force (EMF) Electromotive force (EMF) remains the same Electromotive force (EMF) becomes zero 2 / 10 Q.92 The Electromotive force (EMF) developed by the generator depends upon length of rotating wire Area of rotating wire Radius of wire size of magnet 3 / 10 Q.93 The metal detectors installed at airports and other places for security purpose are based on the principle of potential difference electromagnetic difference electromagnetic induction potential energy 4 / 10 Q.94 If the coil is placed perpendicular to field lines then the number of lines passing through the coil is Minimum maximum zero maybe maximum or minimum 5 / 10 Q.95 In alternative current generator, AC current reverses its direction 50 times per second 20 times per second 70 times per second 80 times per second 6 / 10 Q.96 Name two main parts of an AC generator Stator Rotor Both 1 and 2 None of these 7 / 10 Q.97 AC generator converts Mechanical energy to electrical energy Heat energy to mechanical energy Electrical energy to mechanical energy none 8 / 10 Q.98 What replacement is required to convert an AC generator to DC generator? Concave magnets with horseshoe magnets Armature with coil Slip rings with split rings None of the above 9 / 10 Q.99 The direction of induced emf or current is indicated by Fleming’s left-hand rule Fleming’s right-hand rule Faraday’s law of electromagnetic induction None of these 10 / 10 Q.100 Mutual inductance between two magnetically coupled coils depends on Permeability of the core material Number of turns of the coils The cross-sectional area of their common core All of the above Your score isThe average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz