AC Fundamentals, Circuit and Circuit Theory In a pure capacitive circuit if the supply frequency is reduced to 1/2, the current will Be reduced by half Be reduced to one fourth Be doubled Be four times at high Be reduced by half Be reduced to one fourth Be doubled Be four times at high ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Two waves of the same frequency have opposite phase when the phase angle between them is 360° 0° 180° 90° 360° 0° 180° 90° 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 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 Rises to 63.2% of its final steady value Rises to 38.6% of its final steady value ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Power factor of an electrical circuit is equal to all of these R/Z Cosine of phase angle difference between current and voltage Ratio of useful current to total current Iw/I all of these R/Z Cosine of phase angle difference between current and voltage Ratio of useful current to total current Iw/I ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a purely inductive circuit Actual power is zero None of the listed here Apparent power is zero Reactive power is zero Actual power is zero None of the listed here Apparent power is zero Reactive power is zero ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The r.m.s. value of a sinusoidal A.C. current is equal to its value at an angle of ________ degrees. 45 30 60 90 45 30 60 90 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS