AC Fundamentals, Circuit and Circuit Theory Which of the following coil will have large resonant frequency? A coil with large distributed capacitance A coil with low distributed capacitance A coil with large resistance A coil with low resistance A coil with large distributed capacitance A coil with low distributed capacitance A coil with large resistance A coil with low resistance ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The time constant of the capacitance circuit is defined as the time during which voltage Rises to 63.2% of its final steady value Rises to 38.6% of its final steady value None of these Falls to 36.8% of its final steady value Rises to 63.2% of its final steady value Rises to 38.6% of its final steady value None of these Falls to 36.8% of its final steady value ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a pure resistive circuit Current can lead or lag the voltage by 90° Current lags behind the voltage by 90° Current is in phase with the voltage None of the listed here Current can lead or lag the voltage by 90° Current lags behind the voltage by 90° Current is in phase with the voltage None of the listed here 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? Triangular wave Square wave Sine wave Half wave rectified sine wave Triangular wave Square wave Sine wave Half wave rectified sine wave ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The input of an A.C. circuit having power factor of 0.8 lagging is 40 kVA The power drawn by the circuit is 36 kW 80 kW 40 kW 32 kW 36 kW 80 kW 40 kW 32 kW ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The inductance of a coil can be increased by Decreasing the number of turns Increasing core length Choosing core material having high relative permeability Decreasing the diameter of the former Decreasing the number of turns Increasing core length Choosing core material having high relative permeability Decreasing the diameter of the former ANSWER DOWNLOAD EXAMIANS APP
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