Nichrome and copper wires of same length and same radius are connected in series. Current I is passed through them. Which wire gets heated up more ? Justify your answer.
Class 12 · Physics · CBSE Board · 2017
Class 12 Physics 2017 Board Exam
49 questions from the 2017 Class 12 exam, combined from all 3 question paper sets (Set 1–3) with duplicates removed.
49questions
3exam sets
14chapters covered
1 / 2 / 3 / 4 / 5mark values
Questions from the 2017 exam first 10 of 49 — free
A proton and an electron travelling along parallel paths enter a region of uniform magnetic field, acting perpendicular to their paths. Which of them will move in a circular path with higher frequency ?
A bar magnet is moved in the direction indicated by the arrow between two coils PQ and CD. Predict the direction of the induced current in each coil.
How does the angle of minimum deviation of a glass prism vary, if the incident violet light is replaced by red light ? Give reason.
Do electromagnetic waves carry energy and momentum ?
Name the phenomenon which shows the quantum nature of electromagnetic radiation.
Four nuclei of an element undergo fusion to form a heavier nucleus, with release of energy. Which of the two — the parent or the daughter nucleus — would have higher binding energy per nucleon ?
What is the direction of induced currents in metal rings 1 and 2 when current I in the wire is increasing steadily ?
In which directions do the electric and magnetic field vectors oscillate in an electromagnetic wave propagating along the x-axis ?
Predict the polarity of the capacitor in the situation described below :
Chapters covered in the 2017 exam
Electric Charges and Fields
2 questions in 2017
Electrostatic Potential and Capacitance
2 questions in 2017
Current Electricity
6 questions in 2017
Moving Charges and Magnetism
5 questions in 2017
Magnetism and Matter
1 question in 2017
Electromagnetic Induction
2 questions in 2017
Alternating Current
2 questions in 2017
Electromagnetic Waves
5 questions in 2017
Ray Optics and Optical Instruments
8 questions in 2017
Wave Optics
2 questions in 2017
Dual Nature of Radiation and Matter
4 questions in 2017
Atoms
2 questions in 2017
Nuclei
3 questions in 2017
Semiconductor Electronics
5 questions in 2017
About the 2017 Class 12 Physics paper
CBSE conducted the 2017 Class 12 Physics board exam in 3 question paper sets — students in different regions received different sets of the same exam. This page combines every set and removes repeated questions, giving you all 49 unique questions actually asked that year. The 2017 questions drew from 14 chapters of the syllabus.