AC Fundamentals, Circuit and Circuit Theory Magnitude of current at resonance in R-L-C circuit Depends upon the magnitude of C Depends upon the magnitude of L Depends upon the magnitude of R Depends upon the magnitude of R, Land C Depends upon the magnitude of C Depends upon the magnitude of L Depends upon the magnitude of R Depends upon the magnitude of R, Land C ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The power factor of a D.C. circuit is always Unity Less than unity Greater than unity Zero Unity Less than unity Greater than unity Zero ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Power factor of an electrical circuit is equal to all of these Ratio of useful current to total current Iw/I Cosine of phase angle difference between current and voltage R/Z all of these Ratio of useful current to total current Iw/I Cosine of phase angle difference between current and voltage R/Z ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Skin effect occurs when a conductor carries current at _________ frequencies. Low Very low High Medium Low Very low High Medium ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Time constant of an inductive circuit Increases with increase of inductance and decrease of resistance Increases with decrease of inductance and increase of resistance Increases with the increase of inductance and the increase of resistance Increases with the decrease of inductance and decrease of resistance Increases with increase of inductance and decrease of resistance Increases with decrease of inductance and increase of resistance Increases with the increase of inductance and the increase of resistance Increases with the decrease of inductance and decrease of resistance ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The inductance of a coil can be increased by Decreasing the diameter of the former Decreasing the number of turns Increasing core length Choosing core material having high relative permeability Decreasing the diameter of the former Decreasing the number of turns Increasing core length Choosing core material having high relative permeability ANSWER DOWNLOAD EXAMIANS APP
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