Transformers When the secondary of a transformer is short circuited, the primary inductance _______ None of the listed here Remians unchanged Is increased Is decreased None of the listed here Remians unchanged Is increased Is decreased ANSWER DOWNLOAD EXAMIANS APP
Transformers If a transformer core has air gaps, then, _________ Reluctance of magnetic path is decreased Hysteresis loss is decreased Magnetising current is greatly increased Eddy current is increased Reluctance of magnetic path is decreased Hysteresis loss is decreased Magnetising current is greatly increased Eddy current is increased ANSWER DOWNLOAD EXAMIANS APP
Transformers In case of 3-phase induction motors, plugging means interchanging two supply phases for quick stopping pulling the motor directly on line without a starter locking of rotor due to harmonics starting the motor on load which is more than the rated load interchanging two supply phases for quick stopping pulling the motor directly on line without a starter locking of rotor due to harmonics starting the motor on load which is more than the rated load ANSWER DOWNLOAD EXAMIANS APP
Transformers The noise resulting from vibrations of laminations set by magnetic forces, is termed as Boo Zoom Hum Magnetostriction Boo Zoom Hum Magnetostriction ANSWER DOWNLOAD EXAMIANS APP
Transformers A tap changer is used on a transformer for Adjustment in primary voltage Adjustments in secondary voltage None of the listed here Adjustment in both primary and secondary Adjustment in primary voltage Adjustments in secondary voltage None of the listed here Adjustment in both primary and secondary ANSWER DOWNLOAD EXAMIANS APP
Transformers When a 6 V battery is connected across the primary of a transformer with a turns ratio of 8, the secondary voltage is 0.75 V 48 V 0 V 6 V 0.75 V 48 V 0 V 6 V ANSWER DOWNLOAD EXAMIANS APP
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