Recent content by wazzup

Hello there In the derivative of the arc secant, why is the absolute value of x ( which is present in the denominator) taken? Is this to prevent the possible of having a zero ( and making the whole expression undefined ? ) Thanks

So do you use the third right hand rule? However, don't know the direction of the force. You specified it to be downward but doesn't that change with a different velocity direction?

Hey... I had a question.. what are they referring to in the following? " 1. from right to left 2. from left to right 3. from bottom to top 4. from top to bottom" Do they mean when the bar is moving from right to left? bar moving from left to right? are the specifying the various directions of...

I'd really appreciate some help with the following questions. Q1) What is the direct of the induced current in the circular loop due to the current shown in each part of the following fig?Have attached pics of 2 questions. The one on top has I increasing and one on the bottom has I decreasing...

Thanks much guys.. Appreciate it :)

I got this answer wrong on a test for some reason. Could anyone confirm that they got the same answers ( in case I messed up on the algebra,etc )? Thanks

Q) Given R1=10 Ohms, R2=15 Ohms, R3=5 Ohms, find the current going through each resistor in this pathway in the attached circuit diagram. My solution is as follows.. i'd appreciate it if you guys could verify if its correct or not: I2=I1+I3-------------------------Equation 1 Starting...

So for question 4, i'd set E1+E2+E3=0 and then plug in F/Q for E? and further plug in Kq1q2/r^2 for F? thanks

Thats what I've tried doing..Since its a square, one of the charge will be in the x dimension only, the other charge will be only in y dimension and the third charge ( diagonally across ) will have both x and y component. I guess I understand what your saying but I do not know how to go about...

I had a few questions which I'd appreciate some help with: Q3) A charge of 6 mC is placed at each corner of a square .100 m on a side. Determine the magnitude and direction of the force on each charge. I essentially found the force on one corner ( by using x and y components ) Hence, for X =...

I see. thanks much..

Q1) Consider two points charges of the same magnitude but oppsite sign ( +Q and -Q), which are fixed a distance d apart. A) Can you find a location where a third positive charge Q could be placed so that the net electric force on this third charge is zero? B) What if the first two charges are...