8) For each of the following statements state if it is TRUE or FALSE. If it is FALSE say why d) The power dissipated in a resistor does not depend on the voltage across it. e) If two conducting parallel plates, with charge +Q on one and -Q on the other, are pulled apart, the potential drop between them will decrease.

Question 48 If the electric potential at a point in space is zero, then the electric field at that point must also be zero. O True always O True sometimes O none of the given choices O False always more information is needed

(13%) Problem 3: A neuron is a body cell that functions to create and transmit electrical signals. To do this, it uses chemical processes to maintain an electrical potential difference across its cell membrane. In this problem we will use our knowledge of electrical relationships to estimate the amount of charge on the membrane. Neurons come in a range of sizes, but a typical one may have a cell body of 20 µm (2 x 105 m) across. The thickness of the membrane is the same for most neurons - about 5 nm (5 x 109 m). The potential difference across a resting nerve membrane is about 70 mV (70 x 103 V). We'll model a piece of the cell membrane 10 μm x 10 μm across as a pair of infinite parallel plates separated by a distance d = 5 nm, with one plate representing the inner edge of the membrane and the other representing the outer edge of the membrane. A25% Part (a) Assuming the space separating the two plates of our membrane is empty space, calculate the electric field between the plates in…

Could some one explain this thanks