PHY_10_37_V2_P_Capacitors

PHY_10_37_V2_P_CAPACITORS

1. What are the elements included in the electrical circuit?
2. In what position should the switch be in order for an electric current to flow in the circuit?
3. Can there be a current in the circuit if the switch is transferred from position A to position B?
4. What is the role of the element X in this circuit?

PHY_10_37_V2_P_CAPACITORS

1. List the main parts of the capacitor.
2. What happens to the charge distribution on the plates while charging the capacitor?
3. How does the speed of movement of electrons change over time?
4. What can be said about the charge that the capacitor plates receive during charging?

https://www.youtube.com/watch?v=IvFVu7Jxa2I

PHY_10_37_V2_P_CAPACITORS

1. Will there be an electric field between the capacitor plates?
2. How is its intensity related to the amount of charge on the plates?
3. How is the voltage between the plates related to the field strength, the charge of the capacitor?

PHY_10_37_V2_P_CAPACITORS

Group 1 d = 5 mm and S = 400 mm2
Group 2 d = 10 mm and S = 400 mm2
Group 3 d = 5 mm and S = 200 mm2
Group 4 d = 10 mm and S = 200 mm2
Group 5 d = 5 mm and S = 300 mm2
6 group d = 10 mm and S = 300 mm2

PHY_10_37_V2_P_CAPACITORS

PHY_10_37_V2_P_CAPACITORS

PHY_10_37_V2_P_CAPACITORS

1. What can be said about the ratio of charge to potential difference in each of the cases considered?
2. How can one explain the slight discrepancy in the results obtained?
3. Does this ratio depend on the charge and the potential difference between the capacitor plates?
4. Does this ratio depend on the distance between the plates? Square plates?

PHY_10_37_V2_P_CAPACITORS

Form of a capacitor
A capacitor is really pretty simple. It's two parallel plates, separated by air or some other insulator. The plates must be pretty close together, often just the with of a thin plastic film. Each plate is connected to a conductor which connects into a circuit.

PHY_10_37_V2_P_CAPACITORS

PHY_10_37_V2_P_CAPACITORS

PHY_10_37_V2_P_CAPACITORS

PHY_10_37_V2_P_CAPACITORS

PHY_10_37_V2_P_CAPACITORS

H/w Solve the problem
Capacitor charge q = 3 • 10-8 C. The capacitance of the capacitor is C = 10 pF.
(a) Determine the voltage between the capacitor plates.
(c) Determine the speed that an electron acquires as it flies from one plate to another in a capacitor. The initial electron velocity is zero.
Electron specific charge is 1.76*10^11C/kg

PHY_10_37_V2_P_CAPACITORS