POTENTIAL DIFFERENCE AND ELECTRIC FIELD HOMEWORK

[tuyenb]

Homework Statement

What is the magnitude of the average electric field inside the battery? Your answer should be in SI units.

Relevant Equations

See first picture please

I tried following the formula but it wasn’t correct. I’m sure I could get it if I had an example as I’m sure this must be a simple question for other people I was just unsure if I was doing it correct.

 

[haruspex]

I tried following the formula but it wasn’t correct.

Per forum rules, please post your attempt.