AC Fundamentals, Circuit and Circuit Theory Which of the following statements pertains to resistors only? Connecting them in parallel increases the total value Can dissipate considerable amount of power Oppose sudden changes in voltage Can act as energy storage devices Connecting them in parallel increases the total value Can dissipate considerable amount of power Oppose sudden changes in voltage Can act as energy storage devices 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 ohm. If frequency is increased to 100 Hz, reactance becomes __________ ohms. 10 5 15 25 10 5 15 25 ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory At very low frequencies a series R-C circuit behaves as almost purely Capacitive Resistive None of the listed here Inductive Capacitive Resistive None of the listed here Inductive ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a pure capacitive circuit if the supply frequency is reduced to 1/2, the current will Be four times at high Be doubled Be reduced to one fourth Be reduced by half Be four times at high Be doubled Be reduced to one fourth Be reduced by half ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In any A.C. circuit always Reactive power is more than actual power Apparent power is more than actual power Reactive power is more than apparent power Actual power is more than reactive power Reactive power is more than actual power Apparent power is more than actual power Reactive power is more than apparent power Actual power is more than reactive power ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The r.m.s. value of pure cosine function is 0.707 of peak value Same as peak value Zero 0.5 of peak value 0.707 of peak value Same as peak value Zero 0.5 of peak value ANSWER DOWNLOAD EXAMIANS APP
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