AC Fundamentals, Circuit and Circuit Theory The power consumed in a circuit element will be least when the phase difference between the current and voltage is 60° 180° 90° 30° 60° 180° 90° 30° 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 Rises to 63.2% of its final steady value Falls to 36.8% of its final steady value Rises to 38.6% of its final steady value None of these Rises to 63.2% of its final steady value Falls to 36.8% of its final steady value Rises to 38.6% of its final steady value 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 180° 0° 90° 360° 180° 0° 90° 360° ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Form factor for a sine wave is 1.11 0.707 1.414 0.637 1.11 0.707 1.414 0.637 ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory If a sinusoidal wave has frequency of 50 Hz with 30 A r.m.s. current which of the following equation represents this wave? 42.42 sin 314 t 30 sin 50 t 60 sin 25 t 84.84 sin 25 t 42.42 sin 314 t 30 sin 50 t 60 sin 25 t 84.84 sin 25 t ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Wire-wound resistors are unsuitable for use at high frequencies because they Create more electrical noise Consume more power Exhibit unwanted inductive and capacitive effects Are likely to melt under excessive eddy current heat Create more electrical noise Consume more power Exhibit unwanted inductive and capacitive effects Are likely to melt under excessive eddy current heat ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS