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MDCAT - Practice Test - Physics - Electromagnetic Induction - Quiz 9

Practice 10 high yield MCQs on Physics from Chapter Electromagnetic Induction for Practice Test. After submission, get instant results with correct answers and detailed explanations. This is Quiz 9 of the series.

81. If a magnet is moved towards a coil, the induced current flows in a direction that:



82. The self-inductance of a long solenoid is given by:



83. The mutual inductance between two coils is maximum when:



84. The induced EMF in a coil rotating in a uniform magnetic field is given by:



85. The peak value of induced EMF in a rotating coil is:



86. The frequency of induced EMF in a coil rotating with angular speed ω is:



87. A coil of 100 turns, area 0.1 m², rotates in a magnetic field of 0.5 T at 50 rad/s. The peak EMF is:



88. The principle of an induction coil (or spark coil) is based on:



89. The core of a transformer is made of soft iron to:



90. A step-up transformer increases voltage because:



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Instructions: Select one answer per question. After submitting, you will see your score, correct answers, and explanations.

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