You are Here: Home >< A-levels

Physics Electric fields

Announcements Posted on
TSR's new app is coming! Sign up here to try it first >> 17-10-2016

Page 11 5bi why use v as 300?
2. This is because the question states that the charge is midway between the parralel plates. This means that from the ion and the bottom plate the potential difference it 300V (Half of 600V). So the ion is being moves through a potential of 300V and not 600V.
3. (Original post by SirRaza97)
This is because the question states that the charge is midway between the parralel plates. This means that from the ion and the bottom plate the potential difference it 300V (Half of 600V). So the ion is being moves through a potential of 300V and not 600V.
is this the same for a beam of electrons that enter e field midway?
4. (Original post by jonnypdot)
is this the same for a beam of electrons that enter e field midway?
I believe so.
5. (Original post by SirRaza97)
I believe so.
1. can i you also clear this up for me,
we have 2 positive charges which are not equal, and are separated by distance d, the electric field strength at the mid point of their separation will be just the sum of their electric fields at a distance d/2?

If charges were now both negative i would have to take into account direction of the E fields, if they were unlike charges will i also add the E fields?

Register

Thanks for posting! You just need to create an account in order to submit the post
1. this can't be left blank
2. this can't be left blank
3. this can't be left blank

6 characters or longer with both numbers and letters is safer

4. this can't be left empty
1. Oops, you need to agree to our Ts&Cs to register

Updated: May 22, 2016
TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Today on TSR

How does exam reform affect you?

From GCSE to A level, it's all changing

Poll

All the essentials

Student life: what to expect

What it's really like going to uni

Essay expert

Learn to write like a pro with our ultimate essay guide.

Create a study plan

Get your head around what you need to do and when with the study planner tool.

Resources by subject

Everything from mind maps to class notes.

Study tips from A* students

Students who got top grades in their A-levels share their secrets

Groups associated with this forum:

View associated groups
Study resources

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.