Answer Happy

Question 2 (10 marks) Consider a capacitor made with square plates that are 1 cm on a side, and separated by 0.01 mm, with paper (dielectric constant=3.6) between the plates. a) What is the capacitance of the capacitor? (2 marks) b) What magnitude of charge is on one of the plates if the capacitor is charged to a potential of 9 V? (1 marks)

c) What is the magnitude of the electric field between the plates when the capacitor is charged to a potential of 9 V? (1 marks) d) An electron is launched from the positive plate travelling towards the negative plate with a speed of 2,000,000 m/s. How fast is the electron moving as it comes out the other side? (6 marks)