AC Fundamentals, Circuit and Circuit Theory When an alternating current passes through an ohmic resistance the electrical power converted into heat is Reactive power Active power Apparent power None of the listed here Reactive power Active power Apparent power None of the listed here ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Wire-wound resistors are unsuitable for use at high frequencies because they Are likely to melt under excessive eddy current heat Exhibit unwanted inductive and capacitive effects Consume more power Create more electrical noise Are likely to melt under excessive eddy current heat Exhibit unwanted inductive and capacitive effects Consume more power Create more electrical noise ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The r.m.s. value of pure cosine function is Same as peak value 0.707 of peak value 0.5 of peak value Zero Same as peak value 0.707 of peak value 0.5 of peak value Zero ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The purpose of a parallel circuit resonance is to magnify Current Voltage Power Frequency Current Voltage Power Frequency ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Inductance of coil Is unaffected by the supply frequency Increases with the increase in supply frequency Becomes zero with the increase in supply frequency Decreases with the increase in supply frequency Is unaffected by the supply frequency Increases with the increase in supply frequency Becomes zero with the increase in supply frequency Decreases with the increase in supply frequency 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 Connecting them in parallel increases the total value Can act as energy storage devices Oppose sudden changes in voltage Can dissipate considerable amount of power Connecting them in parallel increases the total value Can act as energy storage devices Oppose sudden changes in voltage ANSWER DOWNLOAD EXAMIANS APP
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