Students can read the important questions given below for Electromagnetic Induction Class 12 Physics. All Electromagnetic Induction Class 12 Notes and questions with solutions have been prepared based on the latest syllabus and examination guidelines issued by CBSE, NCERT and KVS. You should read all notes provided by us and Class 12 Physics Important Questions provided for all chapters to get better marks in examinations. Physics Question Bank Class 12 is available on our website for free download in PDF.
Important Questions of Electromagnetic Induction Class 12
Question. Lenz law is based on which of the following conservation>
(a) Charge
(b) Mass
(c) Momentum
(d) Energy
Answer
D
Question. What will be the acceleration of the falling bar magnet which passes through the ring such that the ring is held horizontally and the bar magnet is dropped along the axis of the ring?
(a) It depends on the diameter of the ring and the length of the magnet
(b) It is equal due to gravity
(c) It is less than due to gravity
(d) It is more than due to gravity
Answer
C
Question. How to increase the energy stored in an inductor by four times?
(a) By doubling the current
(b) This is not possible
(c) By doubling the inductance
(d) By making current 2–√ times
Answer
A
Question. Consider an inductor whose linear dimensions are tripled and the total number of turns per unit length is kept constant, what happens to the self-inductance? (a) 9 times
(b) 3 times
(c) 27 times
(d) 13 times
Answer
B
