AC Fundamentals, Circuit and Circuit Theory What will be the phase angle between two alternating waves of equal frequency, when one wave attains maximum value the other is at zero value? 45° 180° 90° 30° 45° 180° 90° 30° ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The reactance offered by a capacitor to alternating current of frequency 50 Hz is 20 Q. If frequency is increased to 100 Hz, reactance becomes __________ ohms. 2.5 10 5 15 2.5 10 5 15 ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory If two sinusoids of the same frequency but of different amplitudes and phase angles are subtracted, the resultant is A sinusoid of half the original frequency None of the listed here A sinusoid of the same frequency A sinusoid of double the frequency A sinusoid of half the original frequency None of the listed here A sinusoid of the same frequency A sinusoid of double the frequency ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a R-L-C circuit Exchange of power takes place between capacitor and supply line Power is consumed in resistance and is equal to IR All of the listed here Exchange of power takes place between inductor and supply line Exchange of power takes place between capacitor and supply line Power is consumed in resistance and is equal to IR All of the listed here Exchange of power takes place between inductor and supply line ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In AC. circuits, laminated iron is invariably used in order to Reduce eddy current loss Reduce circuit permeability Make assembly cheap and easier Increase heat radiation Reduce eddy current loss Reduce circuit permeability Make assembly cheap and easier Increase heat radiation ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Time constant of an inductive circuit Increases with the decrease of inductance and decrease of resistance Increases with increase of inductance and decrease of resistance Increases with the increase of inductance and the increase of resistance Increases with decrease of inductance and increase of resistance Increases with the decrease of inductance and decrease of resistance Increases with increase of inductance and decrease of resistance Increases with the increase of inductance and the increase of resistance Increases with decrease of inductance and increase of resistance ANSWER DOWNLOAD EXAMIANS APP
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