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 Poor power factor All of the listed here Results in more power losses in the electrical system Reduces load handling capability of electrical system Overloads alternators, transformers and distribution lines All of the listed here Results in more power losses in the electrical system Reduces load handling capability of electrical system Overloads alternators, transformers and distribution lines ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The r.m.s. value of a sinusoidal A.C. current is equal to its value at an angle of ________ degrees. 60 30 45 90 60 30 45 90 ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The form factor is the ratio of None of these r.m.s. value to average value Average value to r.m.s. value Peak value to r.m.s. value None of these r.m.s. value to average value Average value to r.m.s. value Peak value to r.m.s. value ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Inductance of coil Decreases with the increase in supply frequency Becomes zero with the increase in supply frequency Increases with the increase in supply frequency Is unaffected by the supply frequency Decreases with the increase in supply frequency Becomes zero with the increase in supply frequency Increases with the increase in supply frequency Is unaffected by the supply frequency ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The purpose of a parallel circuit resonance is to magnify Voltage Power Current Frequency Voltage Power Current Frequency ANSWER DOWNLOAD EXAMIANS APP
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