EXAMIANS
A wire pilot is generally economical for distances up to
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In circuit breaker, the term MCCB stands for
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આપને કાઈ મશીન નથી કે અમુક ગોઠવણો પ્રમાણે કાર્ય જ કરીએ. - ઉપરોક્ત વાક્ય જુદાં પાડવા ક્યાં સંયોજકો કાઢવા પડે.
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The line currents in amperes in phases a, b and c respectively are 500 +j150, 100 – j600 and – 300 + j600 referred to the same reference vector with phase sequence of abc. Find the symmetrical component of currents.
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A 50 Hz synchronous generator is connected to an infinite bus through a line. The p.u. reactances of generator and the line are j0.3 p.u. and j0.2 p.u. respectively. The generator no load voltage is 1.1 p.u. and that of infinite bus is 1.0 p.u. The inertia constant of the generator is 4 MW-sec/MVA. Determine the frequency of natural oscillations if the generator is loaded to 60% of its maximum power transfer capacity and small perturbation in power is given.
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If the velocity of electromagnetic wave in free space is 3 × 10⁸ m/s, then the velocity in a medium with εr of 4.5 and μr of 2 would be
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A generating station having 'n' section busbars each rated at Q kVA with ×% reactance is connected on the tie-bars systems through busbar reactances of b%. Determine the short circuit kVA if a 3-phase fault takes place on one section.
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A given solar cell has the following specifications:<br/>Open-circuit voltage, Voc: 0.7 V<br/>Short-circuit current, Isc: 3 A<br/>Voltage at maximum power, Vmp: 0.5 V<br/>Current at maximum power, Imp : 2.65 A<br/>Calculate the fill factor.
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પાણી : પાણીગ્રહણ :: હસ્ત : ???
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The relation between electric intensity E, voltage applied V and the distance d between the plates of a parallel plate condenser is
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