Answer Posted / mohamed-mohamed

i know> but my nglish not well> because of that i can not answer

Define conversion efficiency of a power amplifier. What is its value for class c power amplifier?

1427

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What is class ab operation?

1100

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would the same effect be achieved by reversing the connection to one winding of the induction motor 3-phase?

1872

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what reason of line current and phase current in star connection and line current and phase current not equal in delta connection?

2134

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how to select the automotive wire size by mathematical calculation. for xenon headlamp with ballast. the ballast given data voltage 10-17v,current permenant 6amp, run up phase is 15amp, peak at swicth on max 400micro sec is 40amp.the sum of cable resistance is 150mohm.please provide referenc document if any for relating the peak at switch on current,time & wire wire size

2425

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How to calculate capacitor bank size at a load 800kVA.

1784

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Please provided formula for calculate the cable size from step up transformer to M.V panel, run overhead aluminum cables, total load is 5mega watt, total length 900 feet.

1811

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how to calculate regulation constants for over head lines? and what are the regulation constant for raccoon conductor at different voltage level and different P.F?

2040

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plz send me the placement interview question and answers of whizchip(technical and apttitude)..i have an interview in next.

5034

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to vary valtage from 0 - max a variac is necessary . so how to design for high power applications nearly about 200KW power

2127

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What Is HO factor in power selection

2124

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How does HT work & Voltage required?

2337

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how can maintaince the acb contactor moveing and fixing kit

2114

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Explain the operation principle, advantages and disadvantages of the following converters: a) A 12 pulse converter b) A Switch-mode inverter c) A thyristor inverter

2125

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What is Scheme Test of High Voltage Switchgear. Which tests it includes.

2469

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