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

Topic :: Voltage

Voltage Interview Questions

Questions Answers Views Company eMail

power is the product of voltage and current.so we can measure the value of power just by using ammeter and voltmeter.......then why do we use a wattmeter?

5 9295

what is the aircraft voltage and frequency standard ?

Jet Airways,

1 4917

what is the effect of power factor to (a) voltage (b) transformers (c) generators (d)transmission lines

4 9242

Why In distibution transformers LV voltage is generaly 433v why distribution transformers are used of DYnii vector group, in india

2056

highest voltage gain can be obtained from a ).CC b).CE c).CB d).Both CE and CB

Cisco, Ericsson, SRC,

14 34736

what is cutoff voltage?

3 6781

A 3 phase motor, 440 voltage, induction motor. If we take out rotor from motor and if we give supply 440 volt to stator then what happens?????

20 22803

HOW DO YOU PROVE THE HIGH VOLTAGE CABLES OR BUSBAR IS DEAD EVEN AFTER IT IS DE ENERGISED

6 14964

what happen for input voltage output voltage input current output current and kva if we increase primery winding in transformer?

1 4150

Why high voltage lines (overhead ) are called high tension lines?

8 34487

In a d.c current, the power is the product of voltage and current. This relationship does not always apply to effective(r.m.s) values in an a.c circuit. Explain the reason for this.

2 6334

you have an automatic voltage regulator at home for your appliances,if the voltage in your area drops from 220v to 190v,does the output of the automatic voltage regulator drops?or does it retains the 220v output?

4 6626

what is Touch and Step voltages

Pinnacle,

1 4429

why the transformer secondary voltage is more than the load end voltage like t/f 11KV/433V for 415V(terminal voltage)

4 11726

What is ST and specify its range of voltage.

1925

Related Topics

Voltage

Un-Answered Questions { Voltage }

How does a Bandgap Voltage reference work?

3852

How about voltage source?

2216

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

2975

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

1745

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

2397

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.

2174

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.

2214

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

2183

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

2761

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?

2263

Formulae for calculating the transmission line losses for different voltage levels

2120

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?

2267

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

6090

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

2132

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

1816