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Long Answer Type Question
Q. 1. What is a Toroid ? Calculate the magnetic induction at a point due to current in Toroid.
Answer :
Q. 2. (a) A current is flowing through a straight thin long metallic conductor. Obtain an expression for magnetic field at a distance d from it.
(b) What will be the field for infinitly long conductor ?
Answer :
Q. 3. What is a cyclotron ? What is the maximum energy of a charged partical accelerated by a cyclotron ? What are its limitations ?
Answer :
Q. 4. What is the effect on the charged particle moving in magnetic and electric fields acting perpendicular to each other ?
Answer :
Q. 5. Calculate the torque on a current loop as a dipole.
Answer :
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Related CBSE Information
Short/V. Short Answer Questions 1-2 Marks Each
1. A current is set up in a long copper pipe. Is there a magnetic field (i) inside ; (ii) outside the
pipe ?
Answer
2. Consider the circuit shown where APB and AQB are semicircles. What will be the mag¬netic field at the centre C of a circular loop ?
Answer
3. Under what conditions the force acting on a charge moving through a uniform magnetic field., minimum ?
Answer
4. What will be the path of a charged particle moving along the direction of a uniform magnetic field?
Answer
5. An
Short Answer Type Questions
Q. 1. Name the nine plantes.
Answer
Q. 2. What is 1 AU ?
Answer
Q. 3. How were the crators caused on the surface of moon ?
Answer
Q. 4. What is albedo of a planet ?
Answer
Q. 5. State Hubble's law.
Answer
Q. 6. What is order of mass of Sun ?
Answer
Q. 7. What is Milky Way ?
Answer
Q. 8. How is brightness of star represented ?
Answer
Q. 9. What is the value of Solar Constant ?
Answer
Q. 10.
Very Short Answer Type Questions
Q. 1. Define semiconductor.
Answer
Q. 2. What is doping ?
Answer
Q. 3. Doping of silicon with indium leads to which type of semiconductor ?
Answer
Q. 4. What is n-type semiconductor ?
Answer
Q. 5. What is p-type semiconductor ?
Answer
Q. 6. Define Gate.
Answer
Q. 7. Which of crystalline or amporphous substance isotropic ?
Answer
Q. 8. Why transistor is so called 7
Answer
Q. 9. What (11011)2 stand for?
Answer
Q. 10. How can you test in
Very Short Answer Type Questions
Q. 1. Define isotopes.
Answer
Q. 2. Define isobars.
strong>Answer
Q. 3. What is atomic mass unit ?
strong>Answer
Q. 4. Define nuclear fission and fusion.
strong>Answer
Q. 5. Define Curie.
strong>Answer
Q. 6. Define half life period.
strong>Answer
Q. 7. What is approximately density of nucleus ?
strong>Answer
Q. 8. What is the ratio of gravitational, electric and nuclear interaction ?
strong>Answer
Q. 9. What is mass defect ?
strong>Answer
Q. 10. Deine radioactive decay constant.
strong>Answer
Q. 11. What is the relation between nuclear
(Short/V. Short Answer Questions-1, 2 Marks)
1. What features of e.m. waves lead Maxwell to conclude that light itself is electromagnetic wave ?
Answer
2. For an electromagnetic wave, write the relationship between amplitude of electric and magnetic field in free space.
Answer
3. State tour properties or electromagnetic waves.
Answer
4. Why sky waves cannot be used in television broadcasting ?
Answer
5. What is the cut off frequency beyond which the ionosphere does not reflect electromagnetic radiations ?
Answer
6. Give a diagram for which it is clear that "taller the antenna, longer the coverage of the