AC Fundamentals, Circuit and Circuit Theory The reactance offered by a capacitor to alternating current of frequency 50 Hz is 20 ohm. If frequency is increased to 100 Hz, reactance becomes __________ ohms. 5 15 25 10 5 15 25 10 ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The ratio of active power to apparent power is known as factor. Load Power Demand Form Load Power Demand Form ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Which of the following statements pertains to resistors only? Can dissipate considerable amount of power Can act as energy storage devices Oppose sudden changes in voltage Connecting them in parallel increases the total value Can dissipate considerable amount of power Can act as energy storage devices Oppose sudden changes in voltage Connecting them in parallel increases the total value ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Which of the following refers to a parallel circuit? The voltage across element is in proportion to it's resistance value The equivalent resistance is greater than any one of the resistors The current through each element is same The current through any one element is less than the source current The voltage across element is in proportion to it's resistance value The equivalent resistance is greater than any one of the resistors The current through each element is same The current through any one element is less than the source current 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 Make assembly cheap and easier Reduce circuit permeability Increase heat radiation Reduce eddy current loss Make assembly cheap and easier Reduce circuit permeability Increase heat radiation ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory For a sine wave with peak value Imax the r.m.s. value is 0.5 Imax 0.9 0.707 1.414 Imax 0.5 Imax 0.9 0.707 1.414 Imax ANSWER DOWNLOAD EXAMIANS APP
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