Two impedances (14 +j5)Nand (18 +j10) N are connected in parallel across a 200-V, 50-Hz supply. Determine (a) the admittance of each branch and of the entire circuit ; (b) the total current, power, and power factor and (c) the capacitance which when connected in parallel with the original circuit will make the resultant power factor unity. [(a) (0.0634 –j0.0226), (0.0424 -j0.023) (0.1058 –j0.0462 S) (b) 23.1 A, 4.232 kW, 0.915 (c) 147 µF]

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3. Two impedances (14 + j5)Nand (18 +jl10) Nare connected in parallel across a 200-V, 50-Hz supply.
Determine (a) the admittance of each branch and of the entire circuit ; (b) the total current, power, and
power factor and (c) the capacitance which when connected in parallel with the original circuit will
make the resultant power factor unity. [(a) (0.0634 –j0.0226), (0.0424 –j0.023) (0.1058 –j0.0462
S)
(b) 23.1 A, 4.232 kW, 0.915 (c) 147 µF]
Transcribed Image Text:3. Two impedances (14 + j5)Nand (18 +jl10) Nare connected in parallel across a 200-V, 50-Hz supply. Determine (a) the admittance of each branch and of the entire circuit ; (b) the total current, power, and power factor and (c) the capacitance which when connected in parallel with the original circuit will make the resultant power factor unity. [(a) (0.0634 –j0.0226), (0.0424 –j0.023) (0.1058 –j0.0462 S) (b) 23.1 A, 4.232 kW, 0.915 (c) 147 µF]
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