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Which of the following is not a property of a good electrical insulator?

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Which of the following is not a property of a good electrical insulator?

(a) It has high electrical resistance

(b) It has a high dielectric strength

(c) It has a high dielectric constant

(d) It has a high thermal resistance

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Correct choice is (c) It has a high dielectric constant

The best explanation: A good electrical insulator has high electrical resistance and high thermal resistance. It has high dielectric strength and low dielectric constant.
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