# IIT JEE Questions And Answers :: Magnetic Effect Of Current And Magnetism: part1

IIT JEE : Magnetic Effect Of Current And Magnetism QUESTIONS AND ANSWERS :: part1 : 1 to 5

Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2014 examinations :

 1.A charged particle moving in a uniform magnetic field and losses 4% of its KE. The radius of curvature of its path changes by: 2% 4% 10% none of these ANSWER : : 2%
 2.Two charged particles each of mass m and charge q are projected in a uniform magnetic field B with the same speed as such planes of motion of particles are perpendicular to magnetic field B, then: they move on circular path of same radii the magnetic forces on them are same to each other the kinetic energies of particles are same to each other all of the above ANSWER : : all of the above
 3.The earths magnetic field at a certain point is 0.70 gauss. This field is to be annulled by the magnetic field at the centre of a circular conducting loop 5.0 cm in radius. The required current is about: 0.66 A 5.6 A 0.28 A 2.8 A ANSWER : : 5.6 A
 4.If an electron and proton having same momenta enter perpendicularly to a magnetic field, then: curved path of electron and proton will be same (ignoring the sense of revolution) they will move undeflected curved path of electron is more curved than that of proton path of proton is more curved ANSWER : : curved path of electron and proton will be same (ignoring the sense of revolution)
 5.A charged particle enters a region of non-uniform field and eventually comes out of it. As it emerges, its speed is greater as compared to the speed at entry point velocity remains unchanged velocity may change but speed remain unchanged speed cannot be estimated as data is insufficient ANSWER : : velocity may change but speed remain unchanged

More Magnetic Effect Of Current And Magnetism QUESTIONS AND ANSWERS available in next pages

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