JEE Main 2022 · 28 Jun · Shift 2 · Physics Q42

← JEE Main 2022 · 28 Jun · Shift 2

PhysicsSingle correct+4 / -1Question 42 of 90

The space inside a straight current carrying solenoid is filled with a magnetic material having magnetic susceptibility equal to $1.2\times10^{-5}$ . What is fractional increase in the magnetic field inside solenoid with respect to air as medium inside the solenoid ?

1.2\times10^{-5}

1.2\times10^{-3}

1.8\times10^{-3}

2.4\times10^{-5}

Answer and worked solution

Official answer: A

Field in the material. $B=\mu_0(1+\chi)nI$ , so the fractional increase is $\chi=1.2\times10^{-5}$ .

(A)

Topics:Magnetic materials

← Previous question Next question →

JEE Main 2022 · 28 Jun · Shift 2, Physics question 42