Topic :: Voltage





Voltage Interview Questions
Questions Answers Views Company eMail

Which of these helps in converting A.C. high voltage to low voltage or its opposite? (1) Transistor (2) Transformer (3) Computater (4) Accumulator

 1 2827

The highest transmission voltage in the country?at present?is: (A) 22 kV (B) 320 kV (C) 400 kV (D) 450 kV

 6 8453

why we step up voltage for reducing the loss, even if voltage and current are proportional anr resistance remains same

Sarhad University,

12 25109

why the generating voltage in India is 11kV or why is it be transmitted as multiples of 11

ACC, Bhel, ECI Engineering and Construction, NTPC, SBL, Senthur Power Services,

34 113246

why the current leads voltage in the case of a capasitor

Infosys,

9 18504

In Ferranti effect,Receiving end voltage is greater than sending voltage,why? can anybody tell me the answer

Engineers India Limited,

15 46430

how to calculate knee point voltage of current transformer?

Bhel, Bhilai, Jackson,

20 150084

What is the difference between voltage transformer and potential transformer?

ABB, ETA, Maritime Academy, MSEB, Reliance Jio, Voltas, Wipro,

38 88591

Is voltage & potential transformer are the same? Are they used for same application ?

 11 14630

why we step down voltage level from 33kv to 11kv and 11kv to 415v.Instead we can step down voltage from 33kv to 415v directly using single transformer.

ABB, Adani, Central Electricals, Electrical, HCL,

12 69082

how system voltage affect the power factor or vice-versa.

 4 6071

why voltage drop if we have connected 230 v ac suplly through diode to bulbe we found haft ie 110 voltage drop why it is

 4 5832

What is the reason for low voltage in houses?

Maytas,

19 49676

what is the reason for balance of voltage in magnetic balance test?

Reliance,

2 6972

What is the differance between negative dc voltage and positive dc voltage because some circuit uses -24,-5,-12,- 15,volt dc supply

eLab, Hero Honda, NTPC, Suzlon, Teradyne,

10 33907



Related Topics


Un-Answered Questions { Voltage }

How does a Bandgap Voltage reference work?

3253

How about voltage source?

1839

How do you size NMOS and PMOS transistors to increase the threshold voltage?

2546

Explain the basic circuits for a current- and voltage- clamp set-up.

1472

What types of I/O have you designed? What were their size? Speed? Configuration? Voltage requirements?

2008




I just want to convert the voltage into current i.e. suppose I have 750V & 1A AC power then I want to convert it into 12V & 62A DC power only difficulty is that I don't want to use the tranceformer. Simply to say, I want to make the step-down without using tranceformer. Please, give me some ideas. And also I want the relation between Magnetic Induction & Weight of the body can be levitated. Or I can say, how much of magnetic induction requires to lift 500gms weight? I am heartily thankful to you.

1818

iam using DM 3251 voltmeter(1 percent accuracy)for 11KV system PT ratio is 11KV/110V.can anybody explain what is the max and min voltage deviation.

1764

how define the torque in ac drive. from electrical side in the drive friquency ,voltage and current three factor is there.

1631

can we calculate the voltage level for microwave energy which is using for our mobile communication?

2340

Is it possible to calculate a voltage for microwave energy generating in oven? Is there any formula relating frequency and voltage and it should be independent of speed?

1832

Formulae for calculating the transmission line losses for different voltage levels

1624

Why the dc voltage drop during starting of emergency lube oil pump? The Voltage drop from 135kv to 125 kv for one min. before re-establish to 135kv?

1796

What si the d/f b/w KVA & KWH, kvarh & kvar, kwh & kvar phase voltage & line voltage

5594

What is the difference between Static and servo controlled voltage stablizer?

1647

What is the rating factor for copper cable ( Specific value according to the type of laying ) & the voltage drop?

1422