AC Fundamentals, Circuit and Circuit Theory The equation of 50 Hz current sine wave having r.m.s. value of 60 A is 42.42 sin 314 t 60 sin 50 t 84.84 sin 3141 60 sin 25 t 42.42 sin 314 t 60 sin 50 t 84.84 sin 3141 60 sin 25 t ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The apparent power drawn by an A.C. circuit is 10 kVA and active power is 8 kW. The reactive power in the circuit is 8 kVAR 12 kVAR 10 kVAR 16 kVAR 8 kVAR 12 kVAR 10 kVAR 16 kVAR ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Inductance of coil Is unaffected by the supply frequency Becomes zero with the increase in supply frequency Decreases with the increase in supply frequency Increases with the increase in supply frequency Is unaffected by the supply frequency Becomes zero with the increase in supply frequency Decreases with the increase in supply frequency Increases with the increase in supply frequency ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The time constant of the capacitance circuit is defined as the time during which voltage None of these Rises to 38.6% of its final steady value Falls to 36.8% of its final steady value Rises to 63.2% of its final steady value None of these Rises to 38.6% of its final steady value Falls to 36.8% of its final steady value Rises to 63.2% of its final steady value ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Power factor of an inductive circuit is usually improved by connecting capacitor to it in Parallel None of the listed here Both parallel and series Series Parallel None of the listed here Both parallel and series Series ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory For a sine wave with peak value Imax the r.m.s. value is 0.9 1.414 Imax 0.707 0.5 Imax 0.9 1.414 Imax 0.707 0.5 Imax ANSWER DOWNLOAD EXAMIANS APP
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