AC Fundamentals, Circuit and Circuit Theory Inductance of coil 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 Decreases with the increase in supply frequency ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The r.m.s. value of alternating current is given by steady (D.C.) current which when flowing through a given circuit for a given time produces The same heat as produced by A.C. when flowing through the same circuit The less heat than produced by A.C. flowing through the same circuit None of these The more heat than produced by A.C. when flowing through the same circuit The same heat as produced by A.C. when flowing through the same circuit The less heat than produced by A.C. flowing through the same circuit None of these The more heat than produced by A.C. when flowing through the same circuit ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a sine wave the slope is constant No where Between 90° and 180° Between 0° and 90° Between 180° and 270° No where Between 90° and 180° Between 0° and 90° Between 180° and 270° ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a pure resistive circuit Current lags behind the voltage by 90° Current is in phase with the voltage Current can lead or lag the voltage by 90° None of the listed here Current lags behind the voltage by 90° Current is in phase with the voltage Current can lead or lag the voltage by 90° None of the listed here ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Magnitude of current at resonance in R-L-C circuit Depends upon the magnitude of L Depends upon the magnitude of C Depends upon the magnitude of R Depends upon the magnitude of R, Land C Depends upon the magnitude of L Depends upon the magnitude of C Depends upon the magnitude of R Depends upon the magnitude of R, Land C ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Power factor of the system is kept high All of the listed here To reduce line losses To reduce voltage regulation of the line To maximize the utilization of the capacities of generators, lines and transformers All of the listed here To reduce line losses To reduce voltage regulation of the line To maximize the utilization of the capacities of generators, lines and transformers ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS