Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
The intercept made by the plane
r
⋅
n
=
q
\mathbf{r} \cdot \mathbf{n} = q
r
⋅
n
=
q
on the
x
x
x
-axis is a.
q
i
⋅
n
\frac{q}{\mathbf{i} \cdot \mathbf{n}}
i
⋅
n
q
b.
i
⋅
n
q
\frac{\mathbf{i} \cdot \mathbf{n}}{q}
q
i
⋅
n
c.
(
i
⋅
n
)
q
(\mathbf{i} \cdot \mathbf{n}) q
(
i
⋅
n
)
q
d.
q
∣
n
∣
\frac{q}{|\mathbf{n}|}
∣
n
∣
q
Browse the problem library