I am applying for NTPC examination.Can we please provide previous paper to my mail prasad.chintala108340@gmail.com

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how to calculate insulation level of transformer?

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What is the type of electrical motor used in mining industries?

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During speed control of dc shunt motor with flux control methode,when armature voltage is constant, How can it possible to increasing the armature current?

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How can we save electrical cost i.e switchgear, wiring, conduiting etc in a room?

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If Neutral Grounding Resistor (GR) failed/shorted. Is it repairable.

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The power showed in the name plate of the motor is input power or output power?? The power showed in the name plate is 18.5kw measured current is 34.5 amps. location is india. can i calculate the efficiency of the motor using this data??

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What is the difference between MCCB & MOCB?

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Transformer Specification say 66/11KV, 23/27/35MVA OFDAN,what is OFDAN? we know ONAN,ONAF or OFAF

2 Answers   Siemens,

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Let's say I have 2 current carrying conductors C1 and C2 carrying currents of 5A and 10A. They are brought close to each other from a distance of infinity to a distance of 10cm away from each other - 1. What would be the values of current flowing in each conductor when (taking into account effects of interference of each conductor on the other) - a. The currents are AC b. The currents are DC c. C1 is AC and C2 is DC Please explain your answer with mathematical equations and formulas. Please specify the final numeric answer. Please make assumptions and clearly specify them.

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if we want to convert the two 12 V DC batteries in parallel for UPS ? what would be the result ? which is better for a UPS , connect two batteries in series or connect them in parallel ?

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How to know the Max. current caring capacity of the cable by its size ?

0 Answers   SFPL,

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