Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Magnetism question

2017 · Shift 1 · Q49
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Advanced
  3. /Physics
  4. /Magnetism
  5. /2017 · Shift 1 · Q49

Magnetism question

2017 · Shift 1 · Q49

JEE AdvancedPhysicsMagnetismMCQ+3 / −0.75
A charged particle (electron or proton) is introduced at the origin (x=0,y=0,z=0) with a given initial velocity v→.\overrightarrow v .v. A uniform electric field E→\overrightarrow EE and a uniform magnetic field B→\overrightarrow BB exist everywhere. The velocity v→,\overrightarrow v ,v, electric field E→\overrightarrow EE and magnetic field B→\overrightarrow BB are given in column 1,21,21,2 and 3,3,3, respectively. The quantities E0,B0{E_0},{B_0}E0​,B0​ are positive in magnitude.

Column 1 Column 2 Column 3
(I) Electron with v→=2E0B0x^\overrightarrow v = 2{{{E_0}} \over {{B_0}}}\widehat xv=2B0​E0​​x (i) E→=E0z^\overrightarrow E = {E_0}\widehat zE=E0​z (P) B→=−B0x^\overrightarrow B = - {B_0}\widehat xB=−B0​x
(II) Electron with v→=E0B0y^\overrightarrow v = {{{E_0}} \over {{B_0}}}\widehat yv=B0​E0​​y​ (ii) E→=−E0y^\overrightarrow E = - {E_0}\widehat yE=−E0​y​ (Q) B→=B0x^\overrightarrow B = {B_0}\widehat xB=B0​x
(III) Proton with v→=0\overrightarrow v = 0v=0 (iii) E→=−E0x^\overrightarrow E = - {E_0}\widehat xE=−E0​x (R) B→=B0y^\overrightarrow B = {B_0}\widehat yB=B0​y​
(IV) Proton with v→=2E0B0x^\overrightarrow v = 2{{{E_0}} \over {{B_0}}}\widehat xv=2B0​E0​​x (iv) E→=E0x^\overrightarrow E = {E_0}\widehat xE=E0​x (S) B→=B0z^\overrightarrow B = {B_0}\widehat zB=B0​z
In which case will the particle describe a helical path with axis along the positive zzz direction?
  1. A
    (IV)(i)(S)\left( {{\rm I}V} \right)\left( i \right)\left( S \right)(IV)(i)(S)
  2. B
    (II)(ii)(R)\left( {{\rm I}{\rm I}} \right)\left( {ii} \right)\left( R \right)(II)(ii)(R)
  3. C
    (III)(iii)(P)\left( {{\rm I}{\rm I}{\rm I}} \right)\left( {iii} \right)\left( P \right)(III)(iii)(P)
  4. D
    (IV)(ii)(R)\left( {{\rm I}V} \right)\left( {ii} \right)\left( R \right)(IV)(ii)(R)
PreviousNext

More from Magnetism

  • A charged particle (electron or proton) is introduced at the origin (x=0,y=0,z=0) with a given initial velocity v. A uniform electric field E and a uniform magnetic field B exist… Includes table2017 · MCQ
  • A uniform magnetic field B exist in the region between x=0 and x=23R​(region 2 in the figure) pointing normally into the plane of the paper. A particle with charge +Q and momentum p directed along x-axis enters… Includes diagram2017 · Multiple correct
  • A symmetric star shaped conducting wire loop is carrying a steady state current I as shown in the figure. The distance between the diametrically opposite vertices of the star is 4a. The magnitude of the magnetic field at the… Includes diagram2017 · MCQ
  • A conductor (shown in the figure) carrying constant current I is kept in the x-y plane in a uniform magnetic field B. If F is the magnitude of the total magnetic force acting on the conductor, then the correct statements is/are Includes diagram2015 · Multiple correct
  • In a thin rectangular metallic strip a constant current I flows along the positive x-direction, as shown in the figure. The length, width and thickness of the strip are l, w and d, respectively. A uniform magnetic field B is applied on the… Includes diagram2015 · Multiple correct
  • In a thin rectangular metallic strip a constant current I flows along the positive x-direction, as shown in the figure. The length, width and thickness of the strip are l, w and d, respectively. A uniform magnetic field B is applied on the… Includes diagram2015 · Multiple correct
  • Two parallel wires in the plane of the paper are distance X0 apart. A point charge is moving with speed u between the wires in the same plane at a distance X1 from one of the wires. When the wires carry current of magnitude I in the same…2014 · Numerical
  • The figure shows a circular loop of radius a with two long parallel wires (numbered 1 and 2) all in the plane of the paper. The distance of each wire from the centre of the loop is d. The loop and the wires are carrying the same current I.… Includes diagram2014 · MCQ