Question

Two large parallel plates are 2.0 cm apart. The strength of the electric field between them is 100.0 N/C. What is the difference in voltage between the plates?

Answer 1

-2.0 V , 0 V , +20 V , or +2.0 V

Answer 2

2.0 * 100 ?

Answer 3

here we have to apply this vector formula:
\[\Large {\mathbf{E}} = - {\text{grad}}\varphi \]

Answer 4

ok!

Answer 5

we have to integrate that formula, so we get:
\[\Large \Delta \varphi = - Ed\]

Answer 6

ok! so we get -(-20)?

Answer 7

I got this:
\[\Large \Delta \varphi = - Ed = - 100 \times 0.02 = ...volts\]

Answer 8

i do not know if i did that right... ;/

Answer 9

oh so we get -2!

so -2.0 V is our solutoin! thanks!!:D

Answer 10

:)