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A balanced star-connected load is connected across a three phase 450V 50 Hz AC supply. Each load element has an impedance of 5+j12 Ω.
Calculate:
(i) The power factor of the load
(ii) The supply line current
(iii) The reactive power consumed by the load
(iv) The delta-connected capacitor values required to restore the system power factor to unity.
Explain Dual Slope ADCs Dual slope ADCs make use of a capacitor connected to a reference voltage. The capacitor voltage begins at zero and is charged for a set time through the
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a) State the principle of working of transformer. b) A 230/110 V, single-phase transformer takes an input of 350 volt-amperes at no load while working at rated voltage. The core
Case 2 ( A>B) Suppose XX = 05H ( stored in A ) And YY = 02H ( stored in B). Then carry flag will reset by CMP instruction, since A> B in this case JNC will transfer the
a digital computer controlled rolling mill regulator system..
A 6 V / 2.5 mA relay is connected in the output stage of a transistor. The coil is made of aluminium having α = 0.004. The resistance of the coil is 600 ? at 32 o C. Calculate th
how two make harmonic motion
N-type semiconductor is an example of (A) Extrinsic semiconductor. (B) Intrinsic semiconductor. (C) Super conductor. (D) Insulators.
a) A 230 V/25V, 50 HZ transformer with a rated primary current of 1,2 Amps is used to supply a number of 25 V, 30 Watt halogen light bulbs. Assuming an ideal transformer and that
Question: General EMC Knowledge (a) Give 2 reasons for the augmentation of electromagnetic radiation in urban regions. (b) Pointe aux Diable bears its name due to the a
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