Electric Circuits The synchronous speed for the seventh space harmonic mmf wave of 8 pole, 50 Hz induction machine will be 107.14 rpm in reverse direction. 5250 rpm in reverse direction. 5250 rpm in forward direction. 107.14 rpm in forward direction. 107.14 rpm in reverse direction. 5250 rpm in reverse direction. 5250 rpm in forward direction. 107.14 rpm in forward direction. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits If the three colour bands of a resistor are grey, violet and gold, what is the value of the resistor? 6.7 ohms. 8.7 ohms. 7.7 ohms. 9.7 ohms. 6.7 ohms. 8.7 ohms. 7.7 ohms. 9.7 ohms. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The resistance of a strip of copper of rectangular cross section is 2 Ω. A metal of resistivity twice that of a copper is coated on its upper surface to a thickness equal to that of copper strip. The resistance of composite strip will be 6 Ω. 3 / 2 Ω. 3 / 4 Ω. 4 / 3 Ω. 6 Ω. 3 / 2 Ω. 3 / 4 Ω. 4 / 3 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Instantaneous power in inductor is proportional to the square of instantaneous current. product of the instantaneous current and rate of change of current. temperature of the inductor. square of the rate of change of current. square of instantaneous current. product of the instantaneous current and rate of change of current. temperature of the inductor. square of the rate of change of current. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits KVL works on the principle of law of conservation of energy. law of conservation of charge. both. None of these law of conservation of energy. law of conservation of charge. both. None of these ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Under resonance condition the phase angle between voltage phase and current phase is - 90° 45° 0° 90° - 90° 45° 0° 90° ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS