What are the directions of the magnetic field | vedclass

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

Question

(B) Consider two large parallel sheets carrying surface current density $K$ in the same direction. Using the right-hand rule for a single sheet,the ma

Vedclass · Accepted Answer

toward us above the plates and away from us below plates and zero between plates.

Vedclass · Answer

(B) Consider two large parallel sheets carrying surface current density $K$ in the same direction. Using the right-hand rule for a single sheet,the magnetic field $B$ is parallel to the sheet and perpendicular to the current direction. For a sheet with current $K$ flowing to the right,the magnetic field points 'out' (towards us) above the sheet and 'in' (away from us) below the sheet. Let the top sheet be $S_1$ and the bottom sheet be $S_2$. Above $S_1$: Both sheets produce a field pointing 'out' (towards us). Between $S_1$ and $S_2$: $S_1$ produces a field pointing 'in' (away from us),and $S_2$ produces a field pointing 'out' (towards us). Since the magnitudes are equal,they cancel out,resulting in zero field. Below $S_2$: Both sheets produce a field pointing 'in' (away from us). Thus,the magnetic field is zero between the plates and points towards us above the plates and away from us below the plates.

What are the directions of the magnetic field between and outside a pair of two parallel large sheets carrying currents in the same directions,as illustrated in the figure?

Similar Questions

$A$ $90\, cm$ long solenoid has six layers of windings of $450\, turns$ each. If the diameter of the solenoid is $2.2\, cm$ and the current carried is $6\, A$, then the magnitude of the magnetic field inside the solenoid, near its centre is: (in $\pi\, G$)

Which of the following statements is incorrect for a current-carrying solenoid?

$A$ solenoid has a core of a material with relative permeability of $400$. The solenoid windings are insulated from the core and carry a current of $2 \text{ A}$. If the number of turns is $1000$ per meter,then the value of magnetic intensity will be . . . . . . .

$A$ closely wound solenoid $80\; cm$ long has $5$ layers of windings of $400$ turns each. The diameter of the solenoid is $1.8\; cm$. If the current carried is $8.0\; A$,estimate the magnitude of $B$ inside the solenoid near its centre.

Vedclass Test Series

Exam Paper Generator

Online Exam Module