Assignment:
Question 1. What is the electric potential at a point 0.45 m away from a point charge of a of 2.5mC.
Question 2. If 3.75 X 10^-4 J of work are required to move 13.7 microc of charge from one point to another, what is the electric potential difference the two points.
Question 3. An electron is released from rest in a vacumm between two flat, parallel metal plates that are 10.0 cm apart and are maintained at a constant electric potental difference of 750 V. (a) If the electron is released from the negative plate, what is its speed just before it strikes the positive plate? (b) What is the kinetic energy of the eletron in units of eV?
Question 4. An isolated metal sphere of radius R carries a positive charge of Q. Another isolated metal sphere, initially uncharged and of radius R/2, is brought into contact withthe first sphere, and the teo are then separated. How much change remains on the first sphere?