Electric Circuits A wire 2.5 m long is bent into a square. An current of 100 A flowing through the wire will produce a magnetizing force at the center of the square, equal to 144 AT / m. 196 AT / m. 222 AT / m. 72 AT / m. 144 AT / m. 196 AT / m. 222 AT / m. 72 AT / m. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A capacitor is connected to supply with switch and the switch is connected between capacitor and supply. Initially switch is open at time zero, and then switch is closed. Then how capacitor behaves at time t = 0+? dielectric losses decreases. open circuit. dielectric losses increases. short circuit. dielectric losses decreases. open circuit. dielectric losses increases. short circuit. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Four resistances 80 Ohm, 50 Ohm, 25 Ohm and R are connected in parallel. Current through 25 Ohm resistance is 4A. Total current of supply is 10A. The value of R will be 40.25. 36.36. 66.66. 76.66. 40.25. 36.36. 66.66. 76.66. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits VRN, VYN and VBN are three phase voltage of a balanced three phase system. If VRN = 200∠30o V and VBN = 200∠- 90o V, then phase sequence of the system is BRY. YRB. RBY. RYB. BRY. YRB. RBY. RYB. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Under resonance condition the power factor of a system is unity lagging any of the above leading unity lagging any of the above leading ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits In series RLC circuit which of the following represents the Q factor ? VR/V XC/R XL/R All of these VR/V XC/R XL/R All of these ANSWER DOWNLOAD EXAMIANS APP