Are you a California resident? It definitely makes a difference whether you are transferring from a CCC (california community college) vs. OOS. Because you're question specifically deals with transferring to the UC's,you should check out the college confidential UC forum...
Homework Statement
Two cars C and D travel in the same direction on a long, straight section of a highway. During a particular time interval \Deltat0, car D is ahead of car C and speeding up while car C is slowing down.
During the interval \Deltat0, it is observed that C gains on car D...
Wow thanks cabraham for the help. Today we get into Maxwell's equations and the relationship of electricity and magnetism. Hopefully this will give me a better understanding. I'll also check out that paper. Thanks again!
Thanks cabraham!
But I'm still confused on to why there is magnetic force acting on the charges if the loop is stationary relative to the observer?
I still see it as if the conductor is moving relative to the magnet, then the charges are put into motion under a magnetic force, while if the...
Ok, this may borderline a homework problem, but I'm not quite grasping the concept of induced electric fields. So let's say that they exist a wire loop and solenoid. The switch in the circuit containing the solenoid is originally open and then closed. At this instant, we induce an emf in the...
Since:
R = \rho \frac{\ell}{A}
When calculating resistance in a circuit and let's say there are no resistors in the circuit, does \ell represent the length of the entire circuit (e.g. the length of the entire wire) or only the length across the battery?
Hey everyone, I'm having trouble with b and c and any help would be appreciated! I attached two pictures on the bottom (one of the entire problem and one of just the diagram)
Homework Statement
Five loops are formed of copper wire of the same gauge (cross-sectional area). Loops 1-4 are...
Ok gotcha. So the current through Bulb B increases since it now gets the current that flows through the circuit but this current is decreased for A and D as the equivalent resistance is now increased because all 3 bulbs are in series. So the total current in the circuit decreases, yet this is...
Woops... yeah meant increased! So if the equivalent resistance increases, then the total current in the circuit decreases and thus current through each bulb decreases?
If no current is going through bulb C then does that mean that overall resistance in the circuit is increased since their resistances now add (bulbs A,B, and D are in series now)?
Homework Statement
http://img153.imageshack.us/img153/8941/physicscircuits1ms3.th.png
a.) The circuit above shows four identical bulbs connected to an ideal battery. Rank the bulbs in order from brightest to dimmest
http://img509.imageshack.us/img509/4655/physics3ya0.th.png
b.)...
Hmmm.. my textbook says that if a negatively charge particle accelerates in a direction opposite to the electric field, the charge field system looses electric potential and electric potential energy is positive. If that's true, then by the conservation of energy, kinetic energy decreases and...
Homework Statement
Two charged rods, each with a net charge -Q are held in place as shown in the top view diagram.
a) A small test charge -q travels from point X to pt. Y along a circular arc shown.
i) Draw an arrow on the diagram at each pt. (X & Y) to show the direction of the electric...