AC Fundamentals, Circuit and Circuit Theory The r.m.s. value of pure cosine function is 0.5 of peak value 0.707 of peak value Zero Same as peak value 0.5 of peak value 0.707 of peak value Zero Same as peak value ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Which of the following statements pertains to resistors only? 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 Can dissipate considerable amount of power Connecting them in parallel increases the total value Can act as energy storage devices ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In series resonant circuit, increasing inductance to its twice value and reducing capacitance to its half value Will change the impedance at resonance frequency Will change the maximum value of current at resonance Will increase the selectivity of the circuit Will change the resonance frequency Will change the impedance at resonance frequency Will change the maximum value of current at resonance Will increase the selectivity of the circuit Will change the resonance frequency ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The power factor of a D.C. circuit is always Zero Unity Greater than unity Less than unity Zero Unity Greater than unity Less than unity ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In an A.C. circuit power is dissipated in None of the listed here Capacitance only Resistance only Inductance only None of the listed here Capacitance only Resistance only Inductance only 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 C Depends upon the magnitude of R, Land C Depends upon the magnitude of R Depends upon the magnitude of L Depends upon the magnitude of C Depends upon the magnitude of R, Land C Depends upon the magnitude of R Depends upon the magnitude of L ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS