Okay guys so let's now move to question 8.4 and the question says calculate the magnitude of the charge x. Remember we already know that the magnitude of the charge x is the same as the magnitude of the charge y because it's identical charges so even if the question said calculate the magnitude of the charge y you would still do the same thing that I'm just going to show you now.
So we had a point charge x and a point charge y. We also have a point p there so in terms of the distance this way two millimeters apart, three millimeters apart so now in this case we're calculating the magnitude of the charge x.
Firstly we can use this formula because we already know the electric net experienced at point p this point it's experiencing a certain magnitude which was given in the statement.
We know we've got one two charges that's why I've got the formula as electric net it's equals to k which is a constant charge of x over r squared plus k charge of y over r squared so I've got two of these because this is experiencing net electric field as a result of these two charges that's why I've got a formula looking exactly like this one.
No comments:
Post a Comment