Question

The potential is represented by $v=4x^2$ volt. Calculate magnitude of the electric field at $(1m,0m,2m)$

• A. $8v/m$
• B. $16v/m$
• C. $0v/m$
• D. $4v/m$

Answer 1

Answer: (A)

The potential is represented by $V=4x^2$
volt
$E=\frac{-dU}{dx}=-8x=-8\times 1=8Volt/m$