Updated 12th Standard CBSE Physics Study Materials 2022-2023 Exams

CBSE 12th Standard Physics Subject Alternating Current HOT Questions 1 Mark Questions With Solution 2021 Sharma - Kochi May-27 , 2021

QB365 Provides the HOT Question Papers for Class 12 Physics, and also provide the detail solution for each and every HOT Questions. HOT Questions will help to get more idea about question pattern in every exams and also will help to get more marks in Exams

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CBSE 12th Standard Physics Subject Alternating Current HOT Questions 1 Mark Questions With Solution 2021

12th Standard CBSE

Physics

Time : 00:10:00 Hrs

Total Marks : 5

A train is moving with uniform speed from North and South, why will any induced emf appear across the ends of its axle?

Two coils are being moved out of magnetic field- one coil is moved rapidly and the other slowly. In which case is more work done and why?

How does the self-inductance of an air-core coil change, when
(i) the number of turns in the coil is decreased,
(ii) an iron rod is introduced in the coil? A copper coil L wound on a soft iron core and a lamp B are connected to a battery E through a tapping key K when the key is suddenly opened, the lamp flashes for an instant to much greater brightness. Explain

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