Transformers In a transformer routine efficiency depends upon Supply frequency Power factor of load Both power factor and load current Load current Supply frequency Power factor of load Both power factor and load current Load current ANSWER DOWNLOAD EXAMIANS APP
Transformers The mutual flux in a transformer remains constant at all loads because ______ Applied voltage and frequency are constant Leakage flux is small Iron core is used Losses are small Applied voltage and frequency are constant Leakage flux is small Iron core is used Losses are small ANSWER DOWNLOAD EXAMIANS APP
Transformers The principle of working of transformer is Static induction Mutual induction Dynamic induction Self induction Static induction Mutual induction Dynamic induction Self induction ANSWER DOWNLOAD EXAMIANS APP
Transformers In a certain loaded transformer, the secondary voltage is one-fourth the primary voltage. The secondary current is one-fourth the primary current equal to the primary current one-fourth the primary current and equal to the primary current four times the primary current one-fourth the primary current equal to the primary current one-fourth the primary current and equal to the primary current four times the primary current ANSWER DOWNLOAD EXAMIANS APP
Transformers A common method of colling a power transformer is Air blast cooling Any of the listed here Natural air cooling Oil cooling Air blast cooling Any of the listed here Natural air cooling Oil cooling ANSWER DOWNLOAD EXAMIANS APP
Transformers Cores of large transformers are built upto nearly circular cross section in order to reduce Copper loss Iron losses Eddy current loss Leakage reactance Copper loss Iron losses Eddy current loss Leakage reactance ANSWER DOWNLOAD EXAMIANS APP
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