Transformers The output current corresponding to the maximum efficiency for a transformer having core loss of 200 W and equivalent resistance referred to secondary of 0.5 Ω is 10 A 5 A 20 A 15 A 10 A 5 A 20 A 15 A ANSWER DOWNLOAD EXAMIANS APP
Transformers The efficiency of a transformer, under heavy loads, is comparatively low because iron loss is increased considerably copper loss becomes high in proportion to the output secondary output is much less as compared to primary input voltage drop both in primary and secondary becomes large iron loss is increased considerably copper loss becomes high in proportion to the output secondary output is much less as compared to primary input voltage drop both in primary and secondary becomes large ANSWER DOWNLOAD EXAMIANS APP
Transformers An ideal transformer is one which _______ None of the listed here Has same number of primary and secondary turns Does not work Has no losses and leakage reactance None of the listed here Has same number of primary and secondary turns Does not work Has no losses and leakage reactance ANSWER DOWNLOAD EXAMIANS APP
Transformers The core type transformer provides _______ Much longer magnetic path Lesser average length per turn Shorter magnetic path None of the listed here Much longer magnetic path Lesser average length per turn Shorter magnetic path None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers In a transformer the energy is conveyed from primary to secondary through air through cooling coil by the flux None of these through air through cooling coil by the flux None of these ANSWER DOWNLOAD EXAMIANS APP
Transformers What kVA rating is required for a transformer that must handle a maximum load current of 8 A with a secondary voltage of 2 kV? 8 kVA 4 kVA 0.25 kVA 16 kVA 8 kVA 4 kVA 0.25 kVA 16 kVA ANSWER DOWNLOAD EXAMIANS APP
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