A magnetic field in a certain region is given by B=(40 hati-15 hatk)× 10-4 T. The magnetic flux passes through a loop of area 5.0 cm2 is placed flat on xy plane is

Question

A magnetic field in a certain region is given by B=(40 hati-15 hatk)× 10-4 T. The magnetic flux passes through a loop of area 5.0 cm2 is placed flat on xy plane is (A) 750nWb (B) -750nWb (C) 360nWb (D) -360nWb

Tardigrade Admin · Accepted Answer

φ = B.A = [ ( 40 hati - 15 hatk 10-4 ] [ 5 × 10-4 hatk ] = - 750 nWb

Q. A magnetic field in a certain region is given by $B = (40 \hat{i} - 15 \hat{k}) \times 1 0^{- 4} T$ . The magnetic flux passes through a loop of area $5.0 c m^{2}$ is placed flat on xy plane is

750nWb

-750nWb

360nWb

-360nWb

$ϕ = B . A$
= $[(40 \hat{i} - 15 \hat{k} 1 0^{- 4}] [5 \times 1 0^{- 4} \hat{k}]$ = - 750 $nWb$

Q. A magnetic field in a certain region is given by B=(40i^−15k^)×10−4T. The magnetic flux passes through a loop of area 5.0cm2 is placed flat on xy plane is