Answer / pardeep

grounding is use in electronics equipment up to 50 voltage
earthing is use in electrical equipment up to high voltage

Answer / meenakshi

both are same.grounding is a term used in USA whereas
earthing is equivalent term of grounding used in UK.

Answer / n.tiwari

earthing is basically the same thing as grounding

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i want all question & answers of the written exam

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A 400 V, 50 Hz, Δ connected synchronous generator has a field reactance of 0.1 Ω and armature resistance of 0.015 Ω. At full load, the machine supplies 1200 A at 0.8 pf lagging. Under full-load conditions, the friction and windage losses are 40 KW and the core losses are 30 KW. What is the machine’s overall efficiency? Ignore any field circuit losses.

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