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Noload on a transformer is carried out to determine
A transformer cannot raise or lower the voltage of a D.C. supply because
The purpose of providing iron core in a stepup transformer is
The no load current in a transformer lags behind the applied voltage by an angle of about
A common method of cooling a power transformer is
Power transformers are designed to have maximum efficiency at
In a given transformer for given applied voltage, losses which remain constant irrespective of load changes are
In a transformer the energy is conveyed from primary to secondary
The dielectric strength of transformer oil is expected to be
Two transformers operating in parallel will share the load depending upon their
The efficiency of a transformer will be maximum when
The no-load current drawn by transformer is usually what per cent of the fullload current ?
A transformer core is laminated to
While conducting shortcircuit test on a transformer the following side is short circuited
The purpose of providing an iron core in a transformer is to
Which winding in a transformer has more number of turns ?
In the transformer the function of a conservator is to
Which of the following is not a part of transformer installation ?
The path of a magnetic flux in a transformer should have
The maximum efficiency of a distribution transformer is
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