Electric Circuits Energy efficiency during electroplating is usually in the range 90 to 99%. 85 to 90%. 50 to 80%. 80 to 85%. 90 to 99%. 85 to 90%. 50 to 80%. 80 to 85%. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The ratio of the resistance of a 200 W, 230 V lamp to that of a 100 W, 115 V lamp will be 0.5. 0.25. 4. 2. 0.5. 0.25. 4. 2. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 20 μF capacitor and 200 W, 220 V lamp is connected in series across a 220 V alternating supply. In which frequency of the supply the lamp will glow dimmest? 1 Hz. 1000 Hz. 10 Hz. 100 Hz. 1 Hz. 1000 Hz. 10 Hz. 100 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The synchronous speed for the seventh space harmonic mmf wave of 8 pole, 50 Hz induction machine will be 5250 rpm in forward direction. 107.14 rpm in reverse direction. 107.14 rpm in forward direction. 5250 rpm in reverse direction. 5250 rpm in forward direction. 107.14 rpm in reverse direction. 107.14 rpm in forward direction. 5250 rpm in reverse direction. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Two equal resistors R connected in series across a voltage source V dissipate power P. What would be the power dissipated in the same resistors when they are connected in parallel across the same voltage source? P. 2P. 16P. 4P. P. 2P. 16P. 4P. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits If the practical units of voltage and current wave each made 20 times as large as they are at present, what would be the consequent alternation in the size of the unit of capacitance? 60 times. 20 times. Nil. 200 times. 60 times. 20 times. Nil. 200 times. ANSWER DOWNLOAD EXAMIANS APP
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