Transformers A tap changer is used on a transformer for Adjustment in primary voltage Adjustments in secondary voltage Adjustment in both primary and secondary None of the listed here Adjustment in primary voltage Adjustments in secondary voltage Adjustment in both primary and secondary None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Transformers Efficiency of a power transformer is of the order of 98 per cent 50 per cent 100 per cent 25 per cent 98 per cent 50 per cent 100 per cent 25 per cent ANSWER DOWNLOAD EXAMIANS APP
Transformers The principle of working of transformer is Self induction Dynamic induction Mutual induction Static induction Self induction Dynamic induction Mutual induction Static induction ANSWER DOWNLOAD EXAMIANS APP
Transformers The mutual flux in a transformer remains constant at all loads because ______ Iron core is used Applied voltage and frequency are constant Losses are small Leakage flux is small Iron core is used Applied voltage and frequency are constant Losses are small Leakage flux is small ANSWER DOWNLOAD EXAMIANS APP
Transformers Power transformers are generally designed to have maximum efficiency around no-load 10% overload half-load near full-load no-load 10% overload half-load near full-load ANSWER DOWNLOAD EXAMIANS APP
Transformers A certain transformer has a turns ratio of 1 and a 0.85 coefficient of coupling. When 2 V ac is applied to the primary, the secondary voltage is 1.7 V 0.85 V 0 V 1 V 1.7 V 0.85 V 0 V 1 V ANSWER DOWNLOAD EXAMIANS APP
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