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Chapter 4: Q11DQ (page 808)

As shown in Table 24.1, water has a very large dielectric Constant K = 80.4. Why do you think water is not commonly used as a dielectric in capacitors?

Short Answer

Expert verified

Water is a very poor conductor it is an excellent solvent for ions which cause the charges flow between the plates

Step by step solution

01

About Dielectric Capacitors

The polarization of the dielectric by the applied electric field increases the capacitor’s surface charge for the given electric field strength.

02

Determine Water is not commonly used as dielectric capacitor

The pure water is a very poor conductor but at the same time water is an excellent solvent for ions. These ions dissolved in the water cause the charges to flow between the two conducting plates and make a short circuit between the two plates, hence the capacitor discharges.

Therefore Water is a very poor conductor. It is an excellent solvent for ions which cause the charges to flow between the plates.

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