- #1

BreadTomato

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## Homework Statement

A filament in a light bulb uses a length of wire 6.0cm. The potential difference across the filament is 240V. What is the force on an electron in the filament from the imposed electric field?

## Homework Equations

F= qE

E = V / d

## The Attempt at a Solution

Hello everyone, thank you for reading this, from what I understand the solution is to substitute the E as V/d to solve this problem, however what I'm puzzled at is why does the length of the wire (6.0cm) is the 'd' in this equation? From what I understand, d is the separation between 2 plates of positive and negative charge, so I'm unsure as to why the 6.0cm applies.

Thank you very much!