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 the amount of voltage generated at power generating stations is 11 KV only....?

3 5408

What is Automatic Voltage regulator(AVR)?

Cummins,

6 21014

If there is major % of Voltage harmonics in the system, how can it be control or reduced?

JCN, Wipro,

2036

AT WHICH VOLTAGE AN OP-AMP OPERATE

TCS, TSC,

11 16696

which IS or IEC is used for earthing,breakdown voltage of transformer oil, hv/pd testing and all type of electrical testing

2662

What_is_mean_by_negative_dc_voltage? why we use -48v except +48v in DC power supply systems.

APEL, BSES,

2 7259

hoe to test voltage restrained overcurrent relay?

2 5818

selection of conductor in different voltage?

TATA,

1 3601

why we step down the voltage from 440 to 220 in machines

4 6965

Generally in AC we consider voltage, frequency and phase sequence for parallel operation ... Can we parallel two DC battery chargers? If yes, then what precaution to be taken when we parallel two DC power?

Reliance,

5 8572

WHY NEGATIVE DC VOLTAGE IS REQUIRED AS POWER SUPPLY FOR INTEGRATED CIRCUITS

5 10371

different between highvoltage & lowvoltage source

5 8024

What is the difference between EMF and Voltage?

IGCAR,

8 19311

What is the difference between AC voltage and DC voltage?

6 19611

if voltage in transmission line more than current will be more or less,if less what about the Ohm's law

2 5222

Related Topics

Voltage

Un-Answered Questions { Voltage }

How does a Bandgap Voltage reference work?

3968

How about voltage source?

2322

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

3085

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

1835

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

2491

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.

2251

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.

2301

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

2267

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

2873

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?

2339

Formulae for calculating the transmission line losses for different voltage levels

2234

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?

2362

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

6216

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

2222

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

1886