Recent content by flannabhra

It should be equal to the voltage of the battery. Thanks for your help.

I think that all (minus a negligible amount) the current will flow through the wire, making the Voltage drop across L2 and L3 zero.

Homework Statement If you measure the resistance of the three lightbulbs (independently) and get the following values. What is the equivalent total resistance of the circuit, and it’s uncertainty. R_1 = (50 \pm 7) \Omega, \ \ R_2 = (720 \pm 30) \Omega, \ \ R_3 = 140 \pm 20) \Omega Now you...

Homework Statement A capacitor is charged to V = 5 kV. A wire is then connected to one plate and is slowly connected to the other. Before actually touching the plate, a spark of length l = 1 cm shoots from the wire to the plate. Using this information, estimate the dielectric breakdown of air...

I am definitely planning on going to graduates school.. Also, I know that I need some 'safety' schools but I am having trouble choosing them. Do you have any recommendations? I am considering UCSB as one.. Thanks again for the help!

Hey guys, I am a high school senior and the time has come for me to apply to schools and start making some big life decisions. Since I took my first physics course, I have been in love with the subject. I know that I want to do something with physics in my life but I a having trouble choosing a...

I am interested in Physics in general as a major. I am still a high school junior so I have time to decide what I want to go into specifically, but after taking two years of Physics, I couldn't think of anything I'd rather study. Do you have any recommendations as to what majors and jobs there...

I am interested in going into Semiconducting Engineering as a career. What would be a good major to start in for this field.

So since the Electric Potential is scalar, is V = 2kQ/a correct? Thank you so much for your help SammyS!

Hi! a) I believe that in this situation, V is scalar. b) 'r' is the distance from the point Q to the origin

I don't understand this.. What is x in this situation if r is the distance from the point Q to the origin?

As stated in the previous comments, a FBD is useful. With that you will be able to analyze all the forces acting on the masses and from there find the solution. Remember F = ma! --Without a doubt, the most important equation for mechanics--

Well a logical explanation sufficed for me(the Electric Fields would be of equal magnitude in opposite directions), but I would like to understand the explanation of it based on formulas. On the matter of r, I was under the impression that you could take the direction that r is pointing from...

I got E = 0 for part (a) but i now feel that it is wrong based on your responses. The variable r represents the distance from the point charge to the Origin.

Homework Statement Two equal positive charges Q are fixed on the x-axis, one at +a and the other at -a. (a) The electric field E at the Origin O (b) The electric potential V at the origin O Homework Equations E=-dV/dr --> V=kQ/rThe Attempt at a Solution VNet = V0 + V1 I got V0 = -kQ/r...