Question

If flux density is 10 weber/m^2 and area of coil is 2 m^2,the flux isselect one:a. 10 webersb. 40 webersc. 20 webersd. 5 webers

Answer 1

Flux is quantitatively the dot product of magnetic field of induction and Vector area,

Flux = (magnetic field). (Vector area)

Now if the angle between the coil and the field lines is 0° that means cos(0°)=1, therefore,

Flux =(magnetic field) (vector area)

Now putting the values,

Flux = (10)(2)= 20 webers.

Note that flux density and magnetic field are the same as,

Magnetic field = flux/area = flux density

-by above formula.