AC Fundamentals, Circuit and Circuit Theory What will be the phase angle between two alternating waves of equal frequency, when one wave attains maximum value the other is at zero value? 180° 30° 45° 90° 180° 30° 45° 90° ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The r.m.s. value of pure cosine function is 0.5 of peak value 0.707 of peak value Zero Same as peak value 0.5 of peak value 0.707 of peak value Zero Same as peak value ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The form factor is the ratio of None of these Peak value to r.m.s. value Average value to r.m.s. value r.m.s. value to average value None of these Peak value to r.m.s. value Average value to r.m.s. value r.m.s. value to average value ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The inductance of a coil can be increased by Increasing core length Decreasing the diameter of the former Decreasing the number of turns Choosing core material having high relative permeability Increasing core length Decreasing the diameter of the former Decreasing the number of turns Choosing core material having high relative permeability 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 Reactive power Active power Apparent power None of the listed here Reactive power Active power Apparent power None of the listed here ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory For a sine wave with peak value Emax ___________ the average value is None of the listed here 0.707 Emax 0.434 Emax 0.636 Emax None of the listed here 0.707 Emax 0.434 Emax 0.636 Emax ANSWER DOWNLOAD EXAMIANS APP
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