Two coaxial solenoids of different radii carr | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) For two coaxial solenoids carrying current in the same direction,the magnetic field produced by the outer solenoid is uniform inside it and zero o

Vedclass · Accepted Answer

$\overrightarrow{F_1} = \overrightarrow{F_2} = 0$

Vedclass · Answer

(D) For two coaxial solenoids carrying current in the same direction,the magnetic field produced by the outer solenoid is uniform inside it and zero outside it. The inner solenoid is placed in this uniform magnetic field. Since the current in the inner solenoid is distributed symmetrically,the net magnetic force on the inner solenoid is zero because the forces on opposite sides cancel each other out.Similarly,the magnetic field produced by the inner solenoid is confined within its own volume and is zero outside it. Therefore,the outer solenoid is placed in a region where the magnetic field due to the inner solenoid is zero. Thus,the net magnetic force on the outer solenoid is also zero.Hence,$\overrightarrow{F_1} = 0$ and $\overrightarrow{F_2} = 0$.

Two coaxial solenoids of different radii carry current $I$ in the same direction. Let $\overrightarrow{F_1}$ be the magnetic force on the inner solenoid due to the outer one and $\overrightarrow{F_2}$ be the magnetic force on the outer solenoid due to the inner one. Then

Similar Questions

$A$ toroid has a core of inner radius $r_1$ and outer radius $r_2$,around which $N$ turns of wire are wound. If the current in the wire is $I$,then the magnetic field inside the toroid is $(\mu_0 = \text{permeability of free space})$

The magnetic field intensity inside a current-carrying solenoid is $H = 2.4 \times 10^3 \ A/m$. If the length and the number of turns of the solenoid are $15 \ cm$ and $60$ turns respectively,the current flowing in the solenoid is: (in $A$)

$A$ long solenoid has $200$ turns per $cm$ and carries a current $i$. The magnetic field at its centre is $6.28 \times 10^{-2} \ Wb/m^2$. Another long solenoid has $100$ turns per $cm$ and it carries a current $i/3$. The value of the magnetic field at its centre is:

$A$ current of $2\, A$ flows in a long,straight wire of radius $2\, mm$. The intensity of the magnetic field on the axis of the wire is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module