AC Fundamentals, Circuit and Circuit Theory Inductance of coil Increases with the increase in supply frequency Becomes zero with the increase in supply frequency Decreases with the increase in supply frequency Is unaffected by the supply frequency Increases with the increase in supply frequency Becomes zero with the increase in supply frequency Decreases with the increase in supply frequency Is unaffected by the supply frequency ANSWER DOWNLOAD EXAMIANS APP
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 30° 90° 180° 60° 30° 90° 180° 60° 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 5 mA 9 mA 15 mA 4 mA 5 mA 9 mA 15 mA 4 mA 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 38.6% of its final steady value Rises to 63.2% of its final steady value None of these Falls to 36.8% of its final steady value Rises to 38.6% of its final steady value Rises to 63.2% of its final steady value ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a pure inductive circuit if the supply frequency is reduced to 1/2, the current will Be doubled Be four times as high Be reduced to one fourth Be reduced by half Be doubled Be four times as high Be reduced to one fourth Be reduced by half 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 Both waves must have zero value at the same time None of the listed here Both waves must have identical peak values Both waves must have same frequency Both waves must have zero value at the same time None of the listed here Both waves must have identical peak values Both waves must have same frequency ANSWER DOWNLOAD EXAMIANS APP
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