1.

OR(a) Obtain the root mean square value of alternating current.(b) Explain construction and theory with block diagram of step-up transformer

Answer»

Atransformerthat increases voltage from primary to secondary (more secondary winding turns than primary winding turns) is called astep-up transformer. ...Transformersare often constructed in such a way that it is not obvious which wires lead to the primary winding and which lead to the secondary.

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