Chalter 22 Electric Fields Misconceptions

Question 1

So how ti determine which plate in a parallel plate or whatever is positive based on different potentials

Answer 1

Here think , if it had higher potential, = MORE ENERGY must have been used ti bring from infinity, so more energy only if MORE POSITIVE , as more resolution , so higher potential is the positive playe

Question 2

Now how to work out the change of potential of a certain object ad a whole

Answer 2

Start potential and where did it end up
Started at 100, ended at 70
Final - INITAL

Question 3

Remember in a UNIFORM field, wherever you go, what is the firce

Answer 3

The forces is ALWAYS CONSTANT, and doesn’t matter how far you are always the same!

Question 4

What to watch out for in elec fields, about work done and values going to and away?

Answer 4

Work done almost does take a (vector ) like aspect in elec fields, going towards positive field requires work done, going away is easy so negative work done!p?

Because it’s different in energies from infinity do it works out like this?