AQA-PHYA4-1-QP-JUN14 Question

Hi,

On this multiple choice questionnaire:

15) A positive ion has charge-to-mass ratio of 2.40x10^7 Ckg^-1. It is held stationary in a vertical electric field.
Which line, A to D, in the table shows correctly both the strength and the direction of the electric field?

Answer: C 2.45x10^6 , direction Upwards

Why?? How please? :smile:

Reply 1

Teenie2

Have a look at this answer from a few years ago.

http://www.thestudentroom.co.uk/showthread.php?t=2013812

I get the same answer as they do i.e. 4.08x10^-7 Not sure where 2.45x10^6 comes from.

Reply 2

Shmurple

Original post by Teenie2

Have a look at this answer from a few years ago.

http://www.thestudentroom.co.uk/showthread.php?t=2013812

I get the same answer as they do i.e. 4.08x10^-7 Not sure where 2.45x10^6 comes from.