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If four 90 ohm resistors are connected in series across an 18 V source, the current equals 50 mA.

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One 200 V, 100 W bulb is connected in series with primary of a 200 V, 10 kVA transformer. If its secondary is kept open circuited, then the bulb would have (1) Full brightness (2) Poor brightness (3) A little less than full brightness (4) More than full brightness 

asked Apr 11, 2018 in Electrical Engineering by Shimroz123

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