Explain how the unit vector is obtained from the position vectors and of two point…

MATHEMATICS · Subjective · CBSE · Mathematics · Vector Algebra · Vector Algebra

Problem

Explain how the unit vector

\hat{\mathbf r}_{12}

is obtained from the position vectors

\mathbf r_1

and

\mathbf r_2

of two point charges

q_1

and

q_2