Dielectric Constant Of Water
Water constitutes about 70% of earth. Some important distinguishing properties of water are high molar concentration, small dissociation constant and high dielectric constant.
Electrostatic Potential and Capacitance
An electrostatic force is a force caused by stationary electric charges /fields. The electrostatic force is caused by the transfer of electrons in conducting materials. Coulomb’s law determines the amount of force between two stationary, charged particles. The electric force is the force which acts between two stationary charges. It is also called Coulomb force.
If the 10.0μF capacitor of a heart defibrillator is charged to 9.00×103 V, find:
a) energy stored in the capacitor.
b) amount of stored charge.
![B. HEART DEFIBRILLATOR
A heart defibrillator is used to provide an
electrical shock to a heart attack victim's
heart to restore the heart's normal
rhythmic pattern. A capacitor is used to
store the energy to be delivered by the
defibrillator and this energy can be
adjusted to fit the situation.
Figure 4. A heart defibrillator
Source:https://commons.wikimedia.org/wiki/File:Biphasischer_Defibrillator.jp
Problem Solving:
1. If the 10.0µF capacitor of a heart defibrillator is charged to 9.00x10° V, find:
b) amount of stored charge.
a) energy stored in the capacitor.
RICH
2. In certain situations, a much smaller amount of energy will defibrillate the heart.
During an open-heart surgery, the 8.00µF capacitor of a heart defibrillator is charged
to store a 40.0 J of energy. Čalculate the:
b) amount of stored charge.
a) voltage applied to the capacitor
EXCELLE
EDUCATIO
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