Recent content by jchoca

Thanks! I was looking for the same thing. I wonder if we're in the same class...haha

Homework Statement A coil with 170 turns, a radius of 5.0 cm, and a resistance of 12 ohms surrounds a solenoid with 230 turns/cm and a radius of 4.7 cm; see the figure. The current in the solenoid changes at a constant rate from 0 to 1.8 A in 0.11 s. Calculate the magnitude and direction of...

I made another attempt at the solution for A): \frac{C}{C_{0}} = \frac{Q}{Q_{0}}=K I know Q_{0} since I know E_{0}. Q=KQ_{0} = 2.684 x 10^{-8}C \frac{Q}{A} = \epsilon_{0} = 2.68 x 10^{-6} C/m2 E = \frac{\sigma}{\epsilon_{0}} = 3.03 x 10^{5}N/C Still wrong though...

Homework Statement Two parallel-plate capacitors A and B are connected in parallel across a 620.0 V battery. Each plate has area 100 cm2 and the plate separations are 4.5 mm. Capacitor A is filled with air; capacitor B is filled with a dielectric of dielectric constant 2.2. A)Find the...