AC Fundamentals, Circuit and Circuit Theory The time constant of a series R-C circuit is given by R2C R/C RC RC2 R2C R/C RC RC2 ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Wire-wound resistors are unsuitable for use at high frequencies because they Consume more power Exhibit unwanted inductive and capacitive effects Are likely to melt under excessive eddy current heat Create more electrical noise Consume more power Exhibit unwanted inductive and capacitive effects Are likely to melt under excessive eddy current heat Create more electrical noise ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Pure inductive circuit takes power from the A.C. line when Applied voltage increases but current decreases Both applied voltage and current increase Both applied voltage and current decrease Applied voltage decreases but current increases Applied voltage increases but current decreases Both applied voltage and current increase Both applied voltage and current decrease Applied voltage decreases but current increases ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The voltage of domestic supply is 220 V. This figure represents Peak value Mean value Average value R.m.s. value Peak value Mean value Average value R.m.s. value 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 Oppose sudden changes in voltage Connecting them in parallel increases the total value Can act as energy storage devices Can dissipate considerable amount of power Oppose sudden changes in voltage Connecting them in parallel increases the total value Can act as energy storage devices ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory A heater is rated as 230 V, 10 kW, A.C. The value 230 V refers to Average voltage Peak voltage None of the listed here R.m.s. voltage Average voltage Peak voltage None of the listed here R.m.s. voltage ANSWER DOWNLOAD EXAMIANS APP
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