October 2009
Intermediate to advanced
503 pages
14h 28m
English
Content preview from Engineering Physics
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6.10 Important requirements of insulators
Insulating materials with different properties are required in electrical, thermal, mechanical and chemical applications.
Figure 6.13 Real and imaginary parts of dielectric constant with frequency of alternating voltage: (a) Upto microwave region and (b) At optical frequencies
Figure 6.14 Variation of polarizability with frequency of alternating voltage
(a) Electrical requirements
High-resistivity insulating materials are required to reduce leakage current. To withstand at high voltages, high dielectric ...