Question

derive electric field​

Answer 1

Answer:

Explanation:

If the electric potential is known at every point in a region of space, the electric field can be derived from the potential. In vector calculus notation, the electric field is given by the negative of the gradient of the electric potential, E = −grad V.

Answer 2

$E = { \frac{1}{4\piε₀} \times \frac{Q}{ { R}^{2} }}$

Explanation:

As,

E = F/Q

$E = \frac{ \frac{1}{4\piε₀} \times \frac{qQ}{ { R}^{2} } }{Q} ={ \frac{1}{4\piε₀} \times \frac{qQ}{ { R}^{2} }} \times \frac{1}{Q}$

$E = { \frac{1}{4\piε₀} \times \frac{Q}{ { R}^{2} }}$

Hence derived.