Question

Electric field due to a point charge at a distance 1 metre from its 900 Newton invented the charges

Answer 1

Answer:

900 N/m

Explanation:

as E=F/q

Answer 2

Answer:

Here E = 630 N/C , r = 6m , To find : Q

We know that

E = k Q / r where k = coulomb's Constant = 9 x 10 ^9

=> Q = E r / k

=> Q = 630 x 6 / 9 x 10 ^9

= 70 x 6 / 10 ^9 ( On dividing 630 by 9 )

= 420 x 10 ^ -9 ( here 1 / 10 ^9 = 10 ^ -9 )

= 4.2 x 10 ^2 x 10 ^ -9 ( here 420 = 4.2 x 10 ^2)

= 4.2 x 10 ^ 2 + ( -9)

= 4.2 x 10 ^ 7 C

Explanation:

Pls mark as brainliest