Point charge is located at and at

PHYSICS · Multi-part · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

Point charge

q_1=+5\,\mu\text{C}

is located at

A(2\,\text{cm},-1\,\text{cm},0)

and

q_2=-3\,\mu\text{C}

at

B(-4\,\text{cm},3\,\text{cm},0)

. Taking

k=9.0\times10^9\,\text{N\,m}^2\text{/C}^2

: (a) Find the unit vector

\hat{\mathbf r}_{12}

from

q_1

to

q_2

. (b) Write the force

\mathbf F_{12}

on

q_1

due to

q_2

in vector form.

Related theory

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