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

Magnetism question

2021 · Shift 1 · Q53
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Advanced
  3. /Physics
  4. /Magnetism
  5. /2021 · Shift 1 · Q53

Magnetism question

2021 · Shift 1 · Q53

JEE AdvancedPhysicsMagnetismMultiple correct+4 / −2
A long straight wire carries a current, I = 2 ampere. A semi-circular conducting rod is placed beside it on two conducting parallel rails of negligible resistance. Both the rails are parallel to the wire. The wire, the rod and the rails lie in the same horizontal plane, as shown in the figure. Two ends of the semi-circular rod are at the distances 1 cm and 4 cm from the wire. At time t = 0, the rod starts moving on the rails with a speed v = 3.0 m/s (see the figure). A resistor R = 1.4 Ω\OmegaΩ and a capacitor C0 = 5.0 μ\muμ F are connected in series between the rails. At time t = 0, C0 is uncharged. Which of the following statement(s) is(are) correct? [μ\muμ 0 = 4 π×\pi\timesπ× 10 −-− 7 SI units. Take ln 2 = 0.7] JEE Advanced 2021 Paper 1 Online Physics - Magnetism Question 34 English
  1. A
    Maximum current through R is 1.2 ×\times× 10 −-− 6 ampere
  2. B
    Maximum current through R is 3.8 ×\times× 10 −-− 6 ampere
  3. C
    Maximum charge on capacitor C0 is 8.4 ×\times× 10 −-− 12 coulomb
  4. D
    Maximum charge on capacitor C0 is 2.4 ×\times× 10 −-− 12 coulomb
PreviousNext

More from Magnetism

  • An α-particle (mass 4 amu) and a singly charged sulphur ion (mass 32 amu) are initially at rest. They are accelerated through a potential V and then allowed to pass into a region of uniform magnetic field which is normal to the…2021 · Numerical
  • Two concentric circular loops, one of radius R and the other of radius 2R, lie in the xy-plane with the origin as their common center, as shown in the figure. The smaller loop carries current I1 in the anti-clockwise direction and the… Includes diagram2021 · Multiple correct
  • A special metal S conducts electricity without any resistance. A closed wire loop, made of S, does not allow any change in flux through itself by inducing a suitable current to generate a compensating flux. The induced current in the loop… Includes diagram2021 · MCQ
  • A special metal S conducts electricity without any resistance. A closed wire loop, made of S, does not allow any change in flux through itself by inducing a suitable current to generate a compensating flux. The induced current in the loop… Includes diagram2021 · MCQ
  • A light disc made of aluminium (a nonmagnetic material) is kept horizontally and is free to rotate about its axis as shown in the figure. A strong magnet is held vertically at a point above the disc away from its axis. On revolving the… Includes diagram2020 · MCQ
  • A circular coil of radius R and N turns has negligible resistance. As shown in the schematic figure, its two ends are connected to two wires and it is hanging by those wires with its plane being vertical. The wires are connected to a… Includes diagram2020 · MCQ
  • Two infinitely long straight wires lie in the xy-plane along the lines x=±R. The wire located at x=+R carries a constant current I1​ and the wire located at x=−R carries a constant current I2​. A circular loop of…2018 · Multiple correct
  • 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