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

Magnetics question

2022 · 28 Jun · Shift 2 · Q62
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Physics
  4. /Magnetics
  5. /2022 · 28 Jun · Shift 2 · Q62

Magnetics question

2022 · 28 Jun · Shift 2 · Q62

JEE MainPhysicsMagneticsMCQ+4 / −1
Two parallel, long wires are kept 0.20 m apart in vacuum, each carrying current of x A in the same direction. If the force of attraction per meter of each wire is 2 ×\times× 10 −-− 6 N, then the value of x is approximately :
  1. A
    1
  2. B
    2.4
  3. C
    1.4
  4. D
    2
PreviousNext

More from Magnetics

  • A closely wounded circular coil of radius 5 cm produces a magnetic field of 37.68×10−4 T at its center. The current through the coil is ​ A. [Given, number of turns in the coil is 100 and π=3.14…2022 · Numerical
  • A wire of length 314 cm carrying current of 14 A is bent to form a circle. The magnetic moment of the coil is ​ A −m2. [Given π=3.14]2022 · Numerical
  • A wire X of length 50 cm carrying a current of 2 A is placed parallel to a long wire Y of length 5 m. The wire Y carries a current of 3 A. The distance between two wires… Includes diagram2022 · MCQ
  • A charge particle moves along circular path in a uniform magnetic field in a cyclotron. The kinetic energy of the charge particle increases to 4 times its initial value. What will be the ratio of new radius to the original radius of…2022 · MCQ
  • Two long current carrying conductors are placed to each other at a distance of 8 cm between them. The magnitude of magnetic field produced at mid-point between the two conductors due to current flowing in them is 300 μ T. The equal…2022 · MCQ
  • Given below are two statements : Statement I : The electric force changes the speed of the charged particle and hence changes its kinetic energy; whereas the magnetic force does not change the kinetic energy of the charged particle.…2022 · MCQ
  • A coil of n number of turns wound tightly in the form of a spiral with inner and outer radii r1 and r2 respectively. When a current of strength I is passed through the coil, the magnetic field at its centre will be :2022 · MCQ
  • There are two infinitely long straight current carrying conductors and they are held at right angles to each other so that their common ends meet at the origin as shown in the figure given below. The ratio of current in both conductor is 1… Includes diagram2021 · MCQ