DGVCL Exam Paper (11-12-2011)
A Mho relay is a

Directional restrained over current relay
Voltage restrained directional relay
Directional restrained over voltage relay
Voltage controlled over current relay

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DGVCL Exam Paper (11-12-2011)
Due to skin effect

Current flows through the half cross section of the conductor
Portion of the conductor near the surface carries more current and the core of the conductor carries less current
Uniform current flows through the conductor
Portion of the conductor near the surface carries less current and the core of the conductor carries more current

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