Physics · 2021
JEE Main · 18 March 2021, Shift 2 · Q14
Which of the following statements are correct? (A) Electric monopoles do not exist whereas magnetic monopoles exist. (B) Magnetic field lines due to…
Which of the following statements are correct ?
(A)
Electric monopoles do not exist whereas magnetic monopoles exist.
(B)
Magnetic field lines due to a solenoid at its ends and outside cannot be completely straight and confined.
(C)
Magnetic field lines are completely confined within a toroid.
(D)
Magnetic field lines inside a bar magnet are not parallel.
(E)
$\displaystyle \chi=-1$ is the condition for a perfect diamagnetic material, where $\displaystyle \chi$ is its magnetic susceptibility.
Choose the correct answer from the options given below :
Official answer
(4)
(C) and (E) only
More from Magnetism and Matter
- Two identical small bar magnets each of dipole moment 3 √5 J / T are placed at a center to center separation of 10 cm, with their axes perpendicular…2026
- The figure gives experimentally measured B vs. H variation in a ferromagnetic material. The retentivity, co-ercivity and saturation, respectively, of…2020
- The vertical component of the earth's magnetic field is 6 × 10^-5 T at any place where the angle of dip is 37^°. The earth's resultant magnetic field…2022
- Choose the correct option:2021
- Given below are two statements: Statement I: For diamagnetic substance, -1 ≤ χ<0, where χ is the magnetic susceptibility. Statement II: Diamagnetic…2023
- A solenoid has a core made of material with relative permeability 400. The magnetic field produced in the interior of solenoid is 1.0 T. The magnetic…2026
- A bar magnet with a magnetic moment 5.0 Am^2 is placed in parallel position relative to a magnetic field of 0.4 T. The amount of required work done…2023
- A compass needle of oscillation magnetometer oscillates 20 times per minute at a place P of dip 30°. The number of oscillations per minute become 10…2022
JEE Main 2021 Physics question, with the answer from NTA’s final answer key. Where our answers come from.