Magnetic Circuit Energy stored by a coil is doubled when its current is increased by percent. 47.5 44.6 42.5 41.4 47.5 44.6 42.5 41.4 ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit The unit of magnetic flux is Ampere/metre Ampere-turn/weber Weber Henry Ampere/metre Ampere-turn/weber Weber Henry ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit The rate of rise of current through an inductive coil is maximum After one time constant At 63.2% of its maximum steady value At the start of the current flow Near the final maximum value of current After one time constant At 63.2% of its maximum steady value At the start of the current flow Near the final maximum value of current ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Those magnetic materials are best suited for making armature and transformer cores which have ________permeability and _________hysteresis loss. Low, low High, low Low, high High, high Low, low High, low Low, high High, high ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Hysteresis loss least depends on Volume of material Steinmetz’s coefficient of material Frequency Ambient temperature Volume of material Steinmetz’s coefficient of material Frequency Ambient temperature ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Silicon steel is used in electrical machines because it has Low hysteresis loss Low retentivity High coercivity Low coercivity Low hysteresis loss Low retentivity High coercivity Low coercivity ANSWER DOWNLOAD EXAMIANS APP
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