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The most common mode of breakdown in ceramic insulators is _____________

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The most common mode of breakdown in ceramic insulators is _____________

(a) Defect Breakdown

(b) Thermal Breakdown

(c) Intrinsic Breakdown

(d) Electrochemical Breakdown

The question was asked in an interview for internship.

The origin of the question is Dielectric Breakdown in section Dielectrics of Engineering Physics II

1 Answer

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The correct option is (b) Thermal Breakdown

For explanation: Thermal breakdown occurs due to local heating or conduction losses which generate heat at the rate faster than it can be dissipated. This is most common in ceramics.

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