Answer / amanmahajan2837

A)1kVA,25Hz
Transformer size is inversely propotional to frequency as we have to increase no of turns for low frequency to produce same impedance

Answer / k.prakashchandra

Back emf is equal to 4.44 flux x frequency x turns . For the given voltage if the frequency is reduced , flux should be increased and hence the larger core or more number of turns

Answer / amanmahajan2837

A) 1kVA , 25 Hz as size is inversely propotional to frequency because we have to increase turns to produce same impedance for low frequency

Answer / vipin singhal

1kva 100hz

Answer / mitesh22

D) 1KVA,100Hz

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