ACTIVITY 8. APPLY THE CONCEPT Direction: Answer the following questions. Write your solution on your answer sheet. 1. Let the energy stored "in the capacitor" be U. Show that U is given by the expression: U =Q/C 12.0 V + 2 [Hint: The power P in the capacitor is given by P = = IV where du C2 dt dQ |=. This is a simple exercise on integration.] 2. Calculate the energy stored in the capacitor network in the figure when the capacitors are fully charged and when the capacitances are C,=12.0pF, C2=2.0pF, and C3=4.0µF, respectively. Dielectric is an insulating material or a very poor conductor of electric current. When dielectrics are placed in an electric field, practically no current flows in them because, unlike metals, they have no loosely bound, or free, electrons that may drift through the material. Instead, electric polarization occurs. The positive charges within the dielectric are displaced minutely in the direction of the electric field, and the negative charges are displaced minutely in the direction opposite to the electric field. This slight separation of charge, or polarization, reduces the electric field within the dielectric. Dielectric in a parallel-plate capacitor is illustrated in the figure. dt Conductive plates d Dielectric
ACTIVITY 8. APPLY THE CONCEPT Direction: Answer the following questions. Write your solution on your answer sheet. 1. Let the energy stored "in the capacitor" be U. Show that U is given by the expression: U =Q/C 12.0 V + 2 [Hint: The power P in the capacitor is given by P = = IV where du C2 dt dQ |=. This is a simple exercise on integration.] 2. Calculate the energy stored in the capacitor network in the figure when the capacitors are fully charged and when the capacitances are C,=12.0pF, C2=2.0pF, and C3=4.0µF, respectively. Dielectric is an insulating material or a very poor conductor of electric current. When dielectrics are placed in an electric field, practically no current flows in them because, unlike metals, they have no loosely bound, or free, electrons that may drift through the material. Instead, electric polarization occurs. The positive charges within the dielectric are displaced minutely in the direction of the electric field, and the negative charges are displaced minutely in the direction opposite to the electric field. This slight separation of charge, or polarization, reduces the electric field within the dielectric. Dielectric in a parallel-plate capacitor is illustrated in the figure. dt Conductive plates d Dielectric
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Answer the following questions and write your solution.
![ACTIVITY 8. APPLY THE CONCEPT
Direction: Answer the following questions. Write your solution on your
answer sheet.
1. Let the energy stored "in the capacitor" be U. Show that U is
given by the expression: U =
12.0 V 수
[Hint: The power P in the capacitor is given by P=:
du
= IV where
dt
C2
C3
/=. This is a simple exercise on integration.]
2. Calculate the energy stored in the capacitor network in the figure
when the capacitors are fully charged and when the
capacitances are C,=12.0pF, C2=2.0pF, and C3=4.0µF, respectively.
Dielectric is an insulating material or a very poor conductor of electric
current. When dielectrics are placed in an electric field, practically no
current flows in them because, unlike metals, they have no loosely bound,
or free, electrons that may drift through the material. Instead, electric
polarization occurs. The positive charges within the dielectric are displaced
minutely in the direction of the electric field, and the negative charges are
displaced minutely in the direction opposite to the electric field. This slight
separation of charge, or polarization, reduces the electric field within the
dielectric. Dielectric in a parallel-plate capacitor is illustrated in the figure.
át
Conductive plates
Dielectric](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa5c3fc75-5a7d-4db8-be49-1d1d6caedf6c%2Fcdd04a41-26d6-4174-8088-89f9d0389734%2Fny7god_processed.jpeg&w=3840&q=75)
Transcribed Image Text:ACTIVITY 8. APPLY THE CONCEPT
Direction: Answer the following questions. Write your solution on your
answer sheet.
1. Let the energy stored "in the capacitor" be U. Show that U is
given by the expression: U =
12.0 V 수
[Hint: The power P in the capacitor is given by P=:
du
= IV where
dt
C2
C3
/=. This is a simple exercise on integration.]
2. Calculate the energy stored in the capacitor network in the figure
when the capacitors are fully charged and when the
capacitances are C,=12.0pF, C2=2.0pF, and C3=4.0µF, respectively.
Dielectric is an insulating material or a very poor conductor of electric
current. When dielectrics are placed in an electric field, practically no
current flows in them because, unlike metals, they have no loosely bound,
or free, electrons that may drift through the material. Instead, electric
polarization occurs. The positive charges within the dielectric are displaced
minutely in the direction of the electric field, and the negative charges are
displaced minutely in the direction opposite to the electric field. This slight
separation of charge, or polarization, reduces the electric field within the
dielectric. Dielectric in a parallel-plate capacitor is illustrated in the figure.
át
Conductive plates
Dielectric
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