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

Magnetism question

2018 · Shift 1 · Q40
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Advanced
  3. /Physics
  4. /Magnetism
  5. /2018 · Shift 1 · Q40

Magnetism question

2018 · Shift 1 · Q40

JEE AdvancedPhysicsMagnetismMultiple correct+4 / −1
Two infinitely long straight wires lie in the xyxyxy-plane along the lines x=±R.x = \pm R.x=±R. The wire located at x=+Rx = + Rx=+R carries a constant current I1{I_1}I1​ and the wire located at x=−Rx=-Rx=−R carries a constant current I2.{I_2}.I2​. A circular loop of radius RRR is suspended with its center at (0,0,3R)\left( {0,0,\sqrt 3 R} \right)(0,0,3​R) and in a plane parallel to the xyxyxy-plane. This loop carries a constant current III in the clockwise direction as seen from above the loop. The current in the wire is taken to be positive if it is in the +j^+ \widehat j+j​ direction. which of the following statements regarding the magnetic field B→\overrightarrow BB is (are) true?
  1. A
    If I1=I2,{I_1} = {I_2},I1​=I2​, then B→\overrightarrow BB cannot be equal to zero at the origin (0,0,0)(0,0,0)(0,0,0)
  2. B
    If I1>0{I_1} \gt 0I1​>0 and I2<0,{I_2} \lt 0,I2​<0, then B→\overrightarrow BB can be equal to zero at the origin (0,0,0)(0,0,0)(0,0,0)
  3. C
    If I1<0{I_1} \lt 0I1​<0 and I2>0,{I_2} \gt 0,I2​>0, then B→\overrightarrow BB can be equal to zero at the origin (0,0,0)(0,0,0)(0,0,0)
  4. D
    If I1=I2,{I_1} = {I_2},I1​=I2​, then the zzz-component of the magnetic field at the center of the loop is (−μ0I2R)\left( { - {{{\mu _0}I} \over {2R}}} \right)(−2Rμ0​I​)
PreviousNext

More from Magnetism

  • In the xy-plane, the region y>0 has a uniform magnetic field B1​k and the region y<0 has another uniform magnetic field B2​k. A positively charged particle is projected from the origin along the… Includes diagram2018 · Numerical
  • A moving coil galvanometer has 50 turns and each turn has an area 2×10−4m2. The magnetic field produced by the magnet inside the galvanometer is 0.02T. The torsional constant of the suspension wire is 10−4Nmrad−1.…2018 · Numerical
  • 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 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 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