Recent content by factfinder

CIE a level physics paper 4. the question was made to be unanswered i guess.

it is work done in moving unit 'positive' charge, isn't it?

is the electric potential arround an isolated negetive charge considered negetive or positive? Also, at the mid point between a negetive and a positive charge of same charge, is the electric potential zero or not?

can temperature be changed without changing pressure as well as number of molecules for an ideal gas?

why platinum is used in some half cells and not in others?

Homework Statement is the hooke's constant same for compression as well as extension of all the materials and springs? Homework Equations Force = hooke's constant * extension [ to a limit] The Attempt at a Solution

Homework Statement if error was found out to be plus/minus 58 and observed value was 227.32 how should the data be rounded of( to which significant figure) Homework Equations The Attempt at a Solution

what would be the best set of book for a level further maths( including statistics and mechanics)