Question

An 100 V/m electric field is directed along the x axis. If the potential at the origin is 300 V, what is potential at the point ( -2m, 0) point

Answer 1

100 V

Step-by-step explanation:

Electric field E = 100 V/m

Potential at the origin = 300 V

Potential at point (-2m, 0) i.e 2 m behind the origin = ?

From the equation ΔV = EΔd,

ΔV =
`V_(0) - V_(x)`

where
`V_(0)` is the potential at origin,

and
`V_(x)` is the potential at point (-2, 0)

E = electric field

Δd = 0 - (-2) = 2 m

`V_(0) - V_(x)` = 300 -
`x`

equating, we have

300 -
`x` = 100 x 2

300 -
`x` = 200

`x` = 100 V

Answer 2

200volts

Step-by-step explanation:

Pls see attached file