Q. Two wires run parallel to each other. They are both 35.0 cm in length. They are separated by 5.00 cm. The wire on the left is carrying a current of 1.20 A and the wire on the right is carrying a current of 0.850 A. The currents have opposite directions. What is the force that is acting between them?
Q. If the voltage source remains connected to the capacitor, but the air is replaced by a layer of palstic with dielectric constant of 3.6, what is the new value of energy stored in it?