College Physics
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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A capacitor with plate area A and separation d is connected to a battery with a voltage of AVpatt-
The capacitor and circuit undergo the following modifications:
Step 1
The capacitor is
connected to the battery.
The plate area is
increased. The capacitor
is still connected to the
Step 2
battery.
The capacitor is
disconnected from the
Step 3
battery.
Step 4
The plates of the capacitor
are moved further apart.
The square plates of the
capacitor are replaced
with circular plates with
equal area. The distance
between the plates
remains constant.
Step 5
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Transcribed Image Text:A capacitor with plate area A and separation d is connected to a battery with a voltage of AVpatt- The capacitor and circuit undergo the following modifications: Step 1 The capacitor is connected to the battery. The plate area is increased. The capacitor is still connected to the Step 2 battery. The capacitor is disconnected from the Step 3 battery. Step 4 The plates of the capacitor are moved further apart. The square plates of the capacitor are replaced with circular plates with equal area. The distance between the plates remains constant. Step 5
d) Circle the equation(s) that correctly give the energy stored in a capacitor.
1Q2
2 C
1
1
2
5e (AV)?
C (Δ)
2
1Q
1
1
5 Q?(AV)
C (AV)²
2
2 0
1 Q
2 C2
e car)
Q (AV)
- C²(AV)
c°(AV)
e) Suppose you want the capacitor in Step 5 to have a capacitance of 13 x 10-12 F when
the circular plates are separated a distance of 0.00050 m. What should the radius of the
plates be?
expand button
Transcribed Image Text:d) Circle the equation(s) that correctly give the energy stored in a capacitor. 1Q2 2 C 1 1 2 5e (AV)? C (Δ) 2 1Q 1 1 5 Q?(AV) C (AV)² 2 2 0 1 Q 2 C2 e car) Q (AV) - C²(AV) c°(AV) e) Suppose you want the capacitor in Step 5 to have a capacitance of 13 x 10-12 F when the circular plates are separated a distance of 0.00050 m. What should the radius of the plates be?
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