AC Fundamentals, Circuit and Circuit Theory Power factor of an electrical circuit is equal to all of these Ratio of useful current to total current Iw/I R/Z Cosine of phase angle difference between current and voltage all of these Ratio of useful current to total current Iw/I R/Z Cosine of phase angle difference between current and voltage ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The r.m.s. value of half wave rectified sine wave is 200 V. The r.m.s. value of full wave rectified AC. will be 111 V 100 V 282.8 V 141.4 V 111 V 100 V 282.8 V 141.4 V ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The safest value of current the human body can carry for more than 3 second is 9 mA 15 mA 5 mA 4 mA 9 mA 15 mA 5 mA 4 mA ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Which of the following statements pertains to resistors only? Can dissipate considerable amount of power Connecting them in parallel increases the total value Oppose sudden changes in voltage Can act as energy storage devices Can dissipate considerable amount of power Connecting them in parallel increases the total value Oppose sudden changes in voltage Can act as energy storage devices ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The power factor of a D.C. circuit is always Less than unity Greater than unity Unity Zero Less than unity Greater than unity Unity Zero ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The frequency of domestic power supply in India is 200 Hz 50 Hz 150 Hz 250 Hz 200 Hz 50 Hz 150 Hz 250 Hz ANSWER DOWNLOAD EXAMIANS APP
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