AC Fundamentals, Circuit and Circuit Theory Power factor of an electrical circuit is equal to Cosine of phase angle difference between current and voltage Ratio of useful current to total current Iw/I R/Z all of these Cosine of phase angle difference between current and voltage Ratio of useful current to total current Iw/I R/Z all of these ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory For the same peak value which of the following wave will 'have the highest r.m.s. value? Half wave rectified sine wave Sine wave Triangular wave Square wave Half wave rectified sine wave Sine wave Triangular wave Square wave ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The phase difference between voltage and current wave through a circuit element is given as 30°. The essential condition is that None of these Both waves must have same frequency Both waves must have zero value at the same time Both waves must have identical peak values None of these Both waves must have same frequency Both waves must have zero value at the same time Both waves must have identical peak values 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 Sine wave Square wave Half wave rectified sine wave Triangular wave Sine wave Square wave Half wave rectified sine wave Triangular wave ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a R-L-C circuit Power is consumed in resistance and is equal to IR Exchange of power takes place between capacitor and supply line All of the listed here Exchange of power takes place between inductor and supply line Power is consumed in resistance and is equal to IR Exchange of power takes place between capacitor and supply line All of the listed here Exchange of power takes place between inductor and supply line ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Pure inductive circuit Consumes some power on average 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 Does not take power at all from a line Consumes some power on average 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 Does not take power at all from a line ANSWER DOWNLOAD EXAMIANS APP
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