Electric Circuits A coil of negligible resistance has an induction of 100 mH. The current passing through the coil changes from 2 A to 4 A at a uniform rate in 0.1 sec the voltage across the coil during this time would be __________ V. 36 8 2 50 36 8 2 50 ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Phase voltages of a star connected alternator are ER = 240∠0o V, EY = 240∠-120o V and EB = 240∠ + 120o V. What is the phase sequence of the system? BYR. RYB. YBR. RBY. BYR. RYB. YBR. RBY. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Pure metal generally have low conductivity and zero temperature coefficient. low conductivity and high temperature coefficient. high conductivity and low temperature coefficient. high conductivity and large temperature coefficient. low conductivity and zero temperature coefficient. low conductivity and high temperature coefficient. high conductivity and low temperature coefficient. high conductivity and large temperature coefficient. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Three resistances of two ohms each are connected in star. In the equivalent delta representation each resistance will have a value of _______________ Ω. 6. 3.4. 5.2. 0.6. 6. 3.4. 5.2. 0.6. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits What is called the instantaneous value of an alternating current? The value of peak current at any instant. The value of alternating quantity at any instant. The value of peak quantity at any instant. The value of alternating frequency at any instant. The value of peak current at any instant. The value of alternating quantity at any instant. The value of peak quantity at any instant. The value of alternating frequency at any instant. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which quantity consists of a unit 1KWh ? Power Energy Charge Time Power Energy Charge Time ANSWER DOWNLOAD EXAMIANS APP