Calculate the magnitude

Question

Calculate the magnitude of an electric field because of a positive charge of 2 uC at a distance of 0.5 m away?

A.

B.

C.

D.

E. 100 X 10^-2 N/C

Answer 1

Given,

Q= 2 micro C

Formula to calculate electric field,

E= KQ/r²

E= (9x10⁹ x 2 x 10^-6 )/ 0.5 x 0.5

E= 72 x 10³ N/C or 7.2 x 10⁴ N/C

Answer 2

Calculate the magnitude of an electric field because of a positive charge of 2 uC at a distance of 0.5 m away?

\Electric field due to charge Q is given as

E = KQ/r²

K = 9*10⁹ Nm²/C²

E = 9*10⁹ *2 * 10^-6 / (0.5)²

=7.2* 10⁴ N/C