AC Fundamentals, Circuit and Circuit Theory For a frequency of 200 Hz, the time period will be 0.5 s 0.005 s 0.05 s 0.0005 s 0.5 s 0.005 s 0.05 s 0.0005 s ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Which of the following statements pertains to resistors only? 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 Can dissipate considerable amount of power Oppose sudden changes in voltage Connecting them in parallel increases the total value ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The reactance offered by a capacitor to alternating current of frequency 50 Hz is 20 Q. If frequency is increased to 100 Hz, reactance becomes __________ ohms. 15 2.5 5 10 15 2.5 5 10 ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The r.m.s. value of a sinusoidal A.C. current is equal to its value at an angle of ________ degrees. 45 90 60 30 45 90 60 30 ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The period of a sine wave is ___________ seconds. Its frequency is 50 Hz 40 Hz 30 Hz 20 Hz 50 Hz 40 Hz 30 Hz 20 Hz 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 Peak voltage None of the listed here R.m.s. voltage Average voltage Peak voltage None of the listed here R.m.s. voltage Average voltage ANSWER DOWNLOAD EXAMIANS APP
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