Dielectric strength of a medium is usually expressed in____________?
Correct answer: C. kV/mm
- A. J/mm
- B. C/m2
- C. kV/mm
- D. N/mm
Explanation
Dielectric strength is the maximum electric field a material can withstand before breakdown, so it is expressed as voltage per unit distance, commonly kV/mm. The other units represent unrelated electrical or mechanical quantities.
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