Class 12 ISC Physics Electromagnetic Induction Board Questions
Here we provide Class 12 Physics important notes,board questions and predicted questions with Answers for chapter Electromagnetic Induction. These important notes,board questions and predicted questions are based on ISC board curriculum and correspond to the most recent Class 12 Physics syllabus. By practising these Class 12 materials, students will be able to quickly review all of the ideas covered in the chapter and prepare for the Class 12 Board examinations as well as other entrance exams such as NEET and JEE.
class 12 ISC Physics Electromagnetic Induction BoardQuestions
Electromagnetic Induction BoardQuestions
Q1
Figure below shows a metallic rod MN of length l = 80 cm kept in a uniform magnetic field of flux
density B = 0.5 T on two parallel metallic rails P and Q. Calculate the emf that will be induced
between its two ends when it is moved towards right with a constant velocity v of 36 km
h-1.
solutions
solutions
Q2
A coil has a self inductance of 0.05 Henry. Find magnitude of the emf induced in it when the current
flowing through it is changing at the rate of 100 As-1
solutions
solutions
Q3
When current flowing through one coil changes from 0 A to 15 A in 0.2 s and emf of 750 V is induced
in an adjacent coil. Calculate the coefficient of mutual inductance of the two coils
solutions
solutions
Q4
What is motional emf? State any 2 factors on which it depends.
solutions
solutions
The emf induced by a motion which is relative to magnetic field is called motional emf. Two factor on which it depends are: velocity of rod and magnetic field.
Q5
AB and CD are 2 parallel conductors kept 1 m apart and connected by a resistance R of 6 Ω as shown
in figure below. They are placed in a magnetic field which is perpendicular to the plane of the
conductors and directed into the paper. A wire MN is placed over a AB and CD and then made to slide
with a velocity 2 ms-1. (Neglect the resistance of AB, CD, and MN . Calculate the induced
current flowing through the register R.
solutions
solutions
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