/10 Report a question What's wrong with this question? You cannot submit an empty report. Please add some details. 12345678910 Chapter 12 : Magnetic Effects of Electric Current This Quiz Contains a set of 10 Questions. The Passing Cut-off is 60%. To start the Quiz, click on the Start Button. All the Best! 1 / 10 Two identical coils connected in series increase magnetic field to Half Same Double Zero 2 / 10 A 3 T field acts on 1 m wire carrying 2 A. Force equals 6 N 3 N 2 N 1 N 3 / 10 Force on conductor becomes zero when angle between field and current is 90° 60° 45° 0° 4 / 10 The commutator in motor ensures Constant current direction Alternating current in coil Reversal of current in coil No heating 5 / 10 The magnetic field around a straight current-carrying conductor consists of Parallel lines Straight lines Random curves Concentric circles 6 / 10 Maximum induced emf occurs when coil is Parallel to field Perpendicular to field Stationary Outside field 7 / 10 A coil has 20 turns. Increasing turns to 40 makes field Half Same Double Four times 8 / 10 Electric generator works on the principle of Heating effect Magnetic effect Electromagnetic induction Chemical reaction 9 / 10 The rule used to find direction of force on a conductor is Right-hand thumb rule Fleming’s left-hand rule Fleming’s right-hand rule Ampere’s law 10 / 10 A conductor of length 0.5 m carries 2 A in magnetic field 3 T. Force equals (F = BIL) 3 N 6 N 2 N 1 N Your score is 0% Restart quiz
