| 137. |
Which of the
following will NOT increase the capacitance of a capacitor?
|
|
A. |
Decrease distance between the
plates. |
|
A
C = keo---
d
Decreasing d increases capacitance |
|
|
|
|
|
|
B. |
Increase the area of the plates. |
|
A
C = keo---
d
Increasing A increases capacitance |
|
|
|
|
|
|
C. |
Replace quartz, k = 4.3, with
mica, k = 7. |
|
C
= kCo increasing k increases capacitance. |
|
|
|
|
|
|
D. |
Rolling the plates into a
cylinder form. |
|
A
C = keo---
d
Rolling the plates into a cylinder form
changes neither A nor d. Capacitance is unchanged.
The Correct Answer is D. |
