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Physics - Magnetic Effects of Current

Practise 31 Manipal (MET) previous year questions on Magnetic Effects of Current, compiled from papers spanning 2010 to 2022. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty Manipal (MET) tests.

Magnetic Effects of Current has been asked in 12 of the 15 years of Manipal (MET) papers analysed (2010–2024), with 31 questions in all. 45% of them were easy, 48% moderate and 6% tough. Most of its questions came from 2018, with 6 questions that year. In the last three years (2022–2024) it had 1 question across 1 paper, about 1 per paper.

The chapter's 6 topics are not weighted equally: Magnetic Field (12 questions, 39%), Force and Torque on Current Carrying Conductor (6 questions, 19%), and Motion of Charged Particle in Magnetic Field (5 questions, 16%) have been asked the most. Magnetic Field has also led over the last five years, with 3 questions. Magnetic Dipole has produced the most tough questions (1).

  1. 1A particle of charge and mass is moving with a velocity towards a large screen placed in -plane placed at a distance . If there is a magneti2022Motion of Charged Particle in Magnetic Field
  2. 2A copper wire of diameter 1.6 mm carries a current . The maximum magnetic field due to this wire is . The value of is :2021Magnetic Field
  3. 3Two wires and , carry equal currents I as shown in figure. One end of both the wires extends to infinity . The magnitude of the magnetic fie2021Magnetic Field
  4. 4A bar magnet has a magnetic moment equal to . It is suspended in a magnetising field equal to . The magnet vibrates with a period 15 s . The2021Magnetic Dipole
  5. 5The formula for magnetic field of a certain component is given by where, total number of turns current through it radius. The component is2020Magnetic Field
  6. 6The time period of a freely suspended magnet is 4 s . If it is broken in length into two equal parts and one part is suspended in the same w2020Magnetic Dipole
  7. 7The force per unit length between two parallel current carrying straight conductors separated by is given by the formula2020Force and Torque on Current Carrying Conductor
  8. 8Mixed and ions (mass of and that of ) beam passes a region of constant perpendicular magnetic field. If kinetic energy of all the ions is sa2019Motion of Charged Particle in Magnetic Field
  9. 9A charged particle travels along a straight line with a speed in a region where both electric field and magnetic fields are present. It foll2018Force and Torque on Current Carrying Conductor
  10. 10A solenoid of length 50 cm and a radius of cross-section 1 cm has 1000 turns of wire wound over it. If the current carried is 5 A , the magn2018Magnetic Field
  11. 11A straight conductor carries a current of 5 A . An electron travelling with a speed of parallel to the wire at a distance of 0.1 m from the 2018Force and Torque on Current Carrying Conductor
  12. 12and are parallel conductors of equal lengths carrying currents and respectively. Distance between and is . Distance between and is also is t2018Force and Torque on Current Carrying Conductor
  13. 13Two long straight wires are set parallel to each other. Each carries a current in the same direction and the separation between them is . Th2018Magnetic Field
  14. 14A long solenoid of length has a mean diameter . It has layers of winding of turns each. If it carries a current , the , magnetic field at it2018Magnetic Field
  15. 15A current carrying coil is bent sharply so as to convert it into a double loop both carrying current in the same direction. If be the initia2016Magnetic Field
  16. 16A long wire carries a steady current. It is bent into a circle of one turn and the magnetic field at the centre of the coil is . It is then 2016Magnetic Field
  17. 17Two bar magnets having same geometry with magnetic moments and , are firstly placed in such a way that their similar poles one are on same s2016Magnetic Moment
  18. 18A solenoid of 2.5 m length and 2.0 cm diameter possesses 10 turns per cm. A current of 0.5 A is flowing through it. The magnetic induction a2016Magnetic Field
  19. 19A coil in the shape of an equilateral triangle of side 1 is suspended between the pole pieces of a permanent magnet such that is in the plan2015Force and Torque on Current Carrying Conductor
  20. 20Two wires of same lengths are shaped into a square and a circle. If they carry same current, then the ratio of their magnetic moments is2015Magnetic Moment
  21. 21A circular coil of 100 turns has an effective radius of 0.05 m and carries a current of 0.1 A . How much work is required to turn it in an e2015Magnetic Dipole
  22. 22A short bar magnet is placed with its south pole towards geographical north. The neutral points are situated at a distance of 20 cm from the2014Magnetic Moment
  23. 23A wire in the form of a square of side a carries a current . Then, the magnetic induction at the centre of the square wire is (magnetic perm2014Magnetic Field
  24. 24Two similar coils are kept mutually perpendicular such that their centres coincide. At the centre, find the ratio of the magnetic field due 2013Magnetic Field
  25. 25The ratio of magnetic moments of two short magnets which give null deflection in position at 12 cm and 18 cm from the centre of a deflection2012Magnetic Moment
  26. 26A proton and an -particle enter a uniform magnetic field perpendicularly with the same speed. If proton takes to make 5 revolutions, then th2011Motion of Charged Particle in Magnetic Field
  27. 27Two parallel conductors and of equal length carry currents and , respectively, in the same direction. Then2011Force and Torque on Current Carrying Conductor
  28. 28A conducting wire is moving towards right in a magnetic field . The direction of induced current in the wire is shown in the figure. The dir2011Biot-Savart’s Law and Ampere’s Circuital Law
  29. 29An electron moving with velocity , describes a circle in a magnetic field of strength . If of electron is . Then the diameter of the circle 2011Motion of Charged Particle in Magnetic Field
  30. 30A charged particle enters a magnetic field with its initial velocity making an angle of with . The path of the particle will be2011Motion of Charged Particle in Magnetic Field
  31. 31In the figure shown, the magnetic field induction at the point will be2010Magnetic Field

Frequently Asked Questions

1.How many questions are available for Magnetic Effects of Current?

This chapter includes 31 questions compiled from Manipal (MET) papers spanning 2010 to 2022.

2.Are these questions only from Manipal (MET), or from other exams too?

These are Manipal (MET) questions specifically for the Magnetic Effects of Current chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

3.Is Magnetic Effects of Current an important chapter for Manipal (MET) Physics?

Magnetic Effects of Current has appeared in 12 of the 15 years of Manipal (MET) papers covered here, with 31 questions across 12 papers - about 3 per paper it appears in.

4.What is the difficulty level of Magnetic Effects of Current questions in Manipal (MET)?

Of the 31 questions analysed for this chapter, 45% are easy, 48% moderate and 6% tough. 2018 had the most, with 6 questions.

5.Which topics in Magnetic Effects of Current should I focus on?

These topics have carried the most weightage in Magnetic Effects of Current:

  • Magnetic Field - 12 questions (39%)
  • Force and Torque on Current Carrying Conductor - 6 questions (19%)
  • Motion of Charged Particle in Magnetic Field - 5 questions (16%)
  • Magnetic Dipole has produced the most tough questions (1).
6.Is Magnetic Effects of Current's weightage in Manipal (MET) going up or down?

Across all 12 papers analysed, Magnetic Effects of Current has averaged about 2.6 questions per paper. In the last three years (2022–2024), that average has fallen, at about 1.0 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.