AC Fundamentals, Circuit and Circuit Theory Skin effect occurs when a conductor carries current at _________ frequencies. Very low Low Medium High Very low Low Medium High ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory A pure inductance connected across 250 V, 50 Hz supply consumes 100 W. This consumption can be attributed to The current flowing in the inductor The reactance of the inductor The big size of the inductor The statement given is false The current flowing in the inductor The reactance of the inductor The big size of the inductor The statement given is false ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory A pure capacitor connected across an A.C. voltage consumed 50 W. This is due to The capacitive reactance in ohms The statement is incorrect The current flowing in capacitor The size of the capacitor being quite big The capacitive reactance in ohms The statement is incorrect The current flowing in capacitor The size of the capacitor being quite big ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The time constant of the capacitance circuit is defined as the time during which voltage Rises to 63.2% of its final steady value Rises to 38.6% of its final steady value Falls to 36.8% of its final steady value None of these Rises to 63.2% of its final steady value Rises to 38.6% of its final steady value Falls to 36.8% of its final steady value None of these ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory A phasor is A line which represents the magnitude and phase of an alternating quantity A colored tag or band for distinction between different phases of a 3-phase supply An instrument used for measuring phases of an unbalanced 3-phase load A line representing the magnitude and direction of an alternating quantity A line which represents the magnitude and phase of an alternating quantity A colored tag or band for distinction between different phases of a 3-phase supply An instrument used for measuring phases of an unbalanced 3-phase load A line representing the magnitude and direction of an alternating quantity ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The period of a sine wave is ___________ seconds. Its frequency is 30 Hz 40 Hz 50 Hz 20 Hz 30 Hz 40 Hz 50 Hz 20 Hz ANSWER DOWNLOAD EXAMIANS APP
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