Question

A uniform electric field of $12$ $V/m$ is along the positive $x$ direction. Determine the potential difference in volts, between $x=0m$ and $x=3m$.

• A. $-27$ $V$
• B. $-36$ $V$
• C. $27$ $V$
• D. $36$ $V$

Answer 1

The correct option is B $-36$ $V$

As we know, relation between uniform electric field strength $\&$ potential difference between two point a distance d

$V=-Ed\Rightarrow V=-\left(12\right)\left(3\right)=-36Volts$