Asingly charged positive ion has a mass of 3.20 ✕ 10-26 kg. after being accelerated from rest through a potential difference of 858 v, the ion enters a magnetic field of 0.920 t along a direction perpendicular to the direction of the field. calculate the radius of the path of the ion in the field.

Radius of the path will be

Step-by-step explanation:

We have given mass of the singly charged positive ion

Potential difference V = 858 volt

Magnetic force on the charge particle is given by , here q is charge v is velocity and B is magnetic field

And centripetal force is given by

These forces will be equal

So

We know that

Now radius

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.

the answers c