AC Fundamentals, Circuit and Circuit Theory The reactance offered by a capacitor to alternating current of frequency 50 Hz is 20 ohm. If frequency is increased to 100 Hz, reactance becomes __________ ohms. 25 15 10 5 25 15 10 5 ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The r.m.s. value and mean value is the same in the case of Half wave rectified sine wave Square wave Sine wave Triangular wave Half wave rectified sine wave Square wave Sine wave Triangular wave ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In each of the three coils of a three phase generator, an alternating voltage having an r.m.s. value of 220 V is induced. Which of the following values is indicated by the voltmeters? 220 v3 V None of these 220/v3 V 220 V 220 v3 V None of these 220/v3 V 220 V ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Form Factor is the ratio of r.m.s. value/average value r.m.s. value/peak value Average value/r.m.s. value Average value/peak value r.m.s. value/average value r.m.s. value/peak value Average value/r.m.s. value Average value/peak value ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory For a frequency of 200 Hz, the time period will be 0.05 s 0.0005 s 0.5 s 0.005 s 0.05 s 0.0005 s 0.5 s 0.005 s 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 R.m.s. voltage Peak voltage None of the listed here Average voltage R.m.s. voltage Peak voltage None of the listed here Average voltage ANSWER DOWNLOAD EXAMIANS APP
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