Voltage Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Topic :: Voltage

Voltage Interview Questions

Questions Answers Views Company eMail

why voltage coil in wattmeter called as pressure coil why the pressure term is used in wattmeter?

NPCIL,

1 8448

Why we use modulus with voltage in stability equation that is P=[E][V]SIN@/X WHY VOLTAGE IS IN MODE VALUE WHAT IS THE REASON?

Bhel,

1 3230

why transmission lines traveled in high voltage?

TATA,

5 8379

We say that if voltage in a power system is increased,for a constant power the current will decrease (by P=VI). isn't this in disagreement with the ohms law(I propotional V;resistant const.).Since the resistance of transmission lines remains constant,shouldn't inc in voltage cause inc in current across the transmission line? I have read many articles across the net but still couldn't this figure this out. :( Guyz plz assist me with dis..:)..

4 5435

what is the difference between servo voltage stabilizer and general voltage stabilizer?

1 4996

why always current in some amp and voltage is 230?

2 4393

what is potetial,voltage,potential difference

1955

what is difference between voltage and potential?

3 5664

Where voltage are high and current to be interrupted is low the breaker preferred is:

2232

Why does the DC voltage needed is less than AC needed to produce corona?

TATA,

2 5024

why can't we increase the voltage by increasing the field voltage in order to get higher voltage.so that we can eliminate step up transformer

Bhel,

4 7248

What happens if the Capacitive Voltage Transformer Primary neutral is not earthed. There is a CVT between Transformer and source, and the CVT neutral of the transformer is not earthed, does it effect the transformer while charging or does it effect the transformer charging process.

1 4207

How can ignition voltage of light increased with the help of a ballast

1 3437

what are the functions of current transducer and voltage transducer?

MEL,

1 4016

what happen as when voltage drop(or may decrease) ? in case of atomic base theory?

1982

Related Topics

Voltage

Un-Answered Questions { Voltage }

How does a Bandgap Voltage reference work?

3848

How about voltage source?

2214

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

2971

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

1744

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

2391

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.

2170

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.

2210

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

2182

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

2758

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?

2258

Formulae for calculating the transmission line losses for different voltage levels

2117

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?

2262

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

6089

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

2130

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

1812