AC Fundamentals, Circuit and Circuit Theory The peak value of a sine wave is 200 V. Its average value is 282.8 V 141.4 V 200 V 127.4 V 282.8 V 141.4 V 200 V 127.4 V ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory For a frequency of 200 Hz, the time period will be 0.5 s 0.0005 s 0.005 s 0.05 s 0.5 s 0.0005 s 0.005 s 0.05 s ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Pure inductive circuit None of the listed here Consumes some power on average Does not take power at all from a line Takes power from the line during some part of the cycle and then returns back to it during other part of the cycle None of the listed here Consumes some power on average Does not take power at all from a line Takes power from the line during some part of the cycle and then returns back to it during other part of the cycle 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 ohm. If frequency is increased to 100 Hz, reactance becomes __________ ohms. 10 15 5 25 10 15 5 25 ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Power factor of an electrical circuit is equal to Cosine of phase angle difference between current and voltage all of these Ratio of useful current to total current Iw/I R/Z Cosine of phase angle difference between current and voltage all of these Ratio of useful current to total current Iw/I R/Z ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory When an alternating current passes through an ohmic resistance the electrical power converted into heat is Apparent power Active power None of the listed here Reactive power Apparent power Active power None of the listed here Reactive power ANSWER DOWNLOAD EXAMIANS APP
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