AC Fundamentals, Circuit and Circuit Theory The product of apparent power and cosine of the phase angle between circuit voltage and current is Reactive power True power Volt-amperes Instantaneous power Reactive power True power Volt-amperes Instantaneous power ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Wire-wound resistors are unsuitable for use at high frequencies because they Create more electrical noise Consume more power Are likely to melt under excessive eddy current heat Exhibit unwanted inductive and capacitive effects Create more electrical noise Consume more power Are likely to melt under excessive eddy current heat Exhibit unwanted inductive and capacitive effects ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a pure inductive circuit The current can lead or lag by 90° The current lags behind the voltage by 90° The current leads the voltage by 90° The current is in phase with the voltage The current can lead or lag by 90° The current lags behind the voltage by 90° The current leads the voltage by 90° The current is in phase with the voltage ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Power factor of the following circuit will be unity Resistance None of the listed here Inductance Capacitance Resistance None of the listed here Inductance Capacitance ANSWER DOWNLOAD EXAMIANS APP
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 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 ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In R-L-C series resonant circuit magnitude of resonance frequency can be changed by changing the value of L or C R only L only C only L or C R only L only C only ANSWER DOWNLOAD EXAMIANS APP
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