Answer / k.prakashchandra

By varying the excitation current

Answer / k.prakashchandra

By varying the excitation (pf)

How much area a lightning arrestor can cover?

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How would your past experience translate into success in this job?

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7. A resistance of 30 ohm is connected across 240v supply. If a resistance R ohm is connected in parallel with 30ohm resistor across the same supply, the current drawn becomes triple of original one The unknown resistor R is

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Does the ELCB or RCCB trip when it is connected to a primary side of a welding transformer?

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