| |
|
|
| |
 |
| Numerical 10 |
|
| 10. A parallel capacitor of plate area 2m2 and plate separation 5 mm is charged to 10,000 V in free space. Calculate (a) capacitance (b) Charge (c) Charge density (d) Field intensity (e) Field displacement. |
| |
| Suggested answer: |
| |
| (a) Capacitance in vacuum |
| |
 |
| |
| = 3.54 x 10-9 F |
| |
| (b) Charge on each plate |
| |
| = 3.54 x 10-9 x 104 C |
| |
| = 3.54 x 10-5 C |
| |
| (c) Charge density on each plate |
| |
 |
| |
| = 1.77 x 10-5 Cm-2 |
| |
| (d) Field Intensity |
| |
 |
| |
| (e) Field displacement |
| |
| = 1.77 x 10-5 Cm-2 |
| |
|
|
| |
|
|
| |
|
|
|
|
|
Electrostatic Potential and Capacitance
|
|
|
