Answer Posted / soumaydeepmaity

when u connect an LED with two 1.5 cells they will glow and if u add another two they will glow more.similarly when u will connect your batteries with two sources it will get charged quickly .

When and where resistance earthing is used ? How to calculate the time constant for earth fault

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In a voltage-controlled current source A A current booster is never used B The load is always floated C A stiff current source drives the load D The load current equals Isc

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what will happen if i connect 12 volt battery with 24 volt battery charger.

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When a single pase capacitor run motor- run on 230vac and Case(1)run with 8 Mfd 250 vac.capacitor , Case( 2) run with 8 Mfd 400vac capacitor. What is difference between both case regarding power ,efficiency etc?

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What are the advantages and disadvantages of the ac motors?

626

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What does ampere turns shows?

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what are the industrail measures to over ferranti effect? how would the ferranti effect the power system if those remedial mearsure arent taken? how often does this effect occurs in real power system?

1687

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The ripple frequency in output of fullwave bridge rectifier is a. Half the input b. Twice the input c. Same as input

1817

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When distance between two pulleys is not fixed, the tension of belt is adjusted by a) driver shaft b) driven shaft c) adjustment screw d) belt

2445

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what is magnetizing current test in power transformer

2186

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how commomn gate triggering is given for TRIAC ? other thyristor wont be efffected?

1919

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What is the working principle of CFL & T5 tube light & 40W tube light with electronic ballast?

3507

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why do we use 25kv supply for traction purpose?

1514

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What is the differance between 2 dc motors of armature voltage 660 v and 440 v?

1557

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What is the most essential condition for the voltage build up for a d.c. Shunt generator?

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