AC Fundamentals, Circuit and Circuit Theory The peak value of a sine wave is 200 V. Its average value is 127.4 V 141.4 V 200 V 282.8 V 127.4 V 141.4 V 200 V 282.8 V ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory If a sinusoidal wave has frequency of 50 Hz with 30 A r.m.s. current which of the following equation represents this wave? 84.84 sin 25 t 60 sin 25 t 42.42 sin 314 t 30 sin 50 t 84.84 sin 25 t 60 sin 25 t 42.42 sin 314 t 30 sin 50 t 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 Can act as energy storage devices Connecting them in parallel increases the total value Oppose sudden changes in voltage Can dissipate considerable amount of power Can act as energy storage devices Connecting them in parallel increases the total value ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a purely inductive circuit Apparent power is zero Actual power is zero Reactive power is zero None of the listed here Apparent power is zero Actual power is zero Reactive power is zero None of the listed here ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The power consumed in a circuit element will be least when the phase difference between the current and voltage is 90° 30° 60° 180° 90° 30° 60° 180° 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 Rises to 38.6% of its final steady value Rises to 63.2% of its final steady value Falls to 36.8% of its final steady value None of these Rises to 38.6% of its final steady value Rises to 63.2% of its final steady value Falls to 36.8% of its final steady value None of these ANSWER DOWNLOAD EXAMIANS APP
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