Recent content by Physics197

Shouldn't the direction for all of these be left to right? I tried using Lenz Law on all of the above cases andd that's what I got

Homework Statement Indicate the current flow across the resistor R. Note that B is uniform over the entire region where it is shown. Choose from the following answers: 1. Current will flow from right to left. 2. Current will flow from left to right. 3. No current will flow...

Homework Statement http://i.imagehost.org/view/0578/bulbsb Consider the current flowing through bulb 1. In each situation, does the current through bulb 1 increase, decrease, or stay the same. 1. All switches are closed, then switch 1 is opened. 2. All switches are closed, then...

anyone..

For 2, would the charge decrease because the electric field decreases (due to the dielectric). and for 4, would the potential increase, because the capitance would increase (C is proportional to K), and the energy is 0.5C(V)2

Homework Statement Fig. 1 and 2 show a dielectric slab being inserted between the plates of one of two identical capacitors, capacitor 2. Select the correct answer to each of the statements below (enter I for `increases', D for `decreases', or S for `stays the same'). 1. In Fig. 2...

http://f.imagehost.org/view/0778/plates

Homework Statement The diagram shows a parallel plate capacitor with plate area A and spacing d. The capacitor can be connected to a battery of potential difference V by closing the switch. Assume d² << A. 1. The force on plate 1 due to plate 2 is F = Q²/(4πε0d²) î, where Q is the...

V = KQ/r and then I can solve for the potential for both cases again... Still doesn't help find the change in potential ENERGY

1. Homework Statement A tire of radius 32.5 cm has a surface that is conducting. A charge of 4.89×10-8 C is then placed on the surface. The potential on the tire's surface is 1.35E+03 V. Later, suppose that some of the air is let out of the tire, so that the radius shrinks to 10.5 cm, the new...

anyone have a clue, or a hint

Homework Statement A tire of radius 32.5 cm has a surface that is conducting. A charge of 4.89×10-8 C is then placed on the surface. The potential on the balloon's surface is 1.35E+03 V. Later, suppose that some of the air is let out of the tire, so that the radius shrinks to 10.5 cm, the...

So for 1, the distance has no effect on the electric field. and for #2, I copied and pasted the question exactly, I too felt like something was missing.

Homework Statement 1. If two plates, 1.0 cm by 1.0 cm, with charges of −2.30 µC and +2.30 µC, what is the magnitude of the electric field at b? +++++++++++++ ...b ----------------- 2. A uniform electric field of strength E = 4.80×10^4 N/C is observed in the region adjacent to a large...

Sorry for wasting your time, but I didn't feel like typing up a page of work.