AC Fundamentals, Circuit and Circuit Theory The power factor of a D.C. circuit is always Unity Less than unity Zero Greater than unity Unity Less than unity Zero Greater than unity ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Which of the following circuit component opposes the change in the circuit voltage ? Conductance Inductance Capacitance Resistance Conductance Inductance Capacitance Resistance ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The effective resistance of an iron-cored choke working on ordinary supply frequency is more than its true resistance because of Increase in temperature Iron loss in core Capacitive effect between adjacent coil turns Skin effect Increase in temperature Iron loss in core Capacitive effect between adjacent coil turns Skin effect ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Capacitors for power factor correction are rated in kW kVA kVAR kV kW kVA kVAR kV ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Poor power factor Reduces load handling capability of electrical system Results in more power losses in the electrical system All of the listed here Overloads alternators, transformers and distribution lines Reduces load handling capability of electrical system Results in more power losses in the electrical system All of the listed here Overloads alternators, transformers and distribution lines ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory Pure inductive circuit None of the listed here Takes power from the line during some part of the cycle and then returns back to it during other part of the cycle Does not take power at all from a line Consumes some power on average None of the listed here Takes power from the line during some part of the cycle and then returns back to it during other part of the cycle Does not take power at all from a line Consumes some power on average ANSWER DOWNLOAD EXAMIANS APP