An electric bulb giving light but at the time of lighting
which one it takes? voltage or current

Answer Posted / saravanan.p

At the time of lighting, current will flow through the tungsten by means of potential difference(Voltage). Due to this, the heat will produced and come out.

Is This Answer Correct ?    6 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is meant by vector group

1985


What are the major reasons for balancing hydro-thermal mix?

688


If Polarization index of motor 8.75 at 500volts of medium voltage 4.16 KV motor what this mean winding good or bad pl answer if any reffrence book give me the link

1728


i am venkat i got gre 930(verbal 270 quanta 660) and my toefl score 105..here question is why u got less score in gre ? what i supposed to tell...any chance of rejection is there...my accadamics record is very good

1734


what kvrah y we need to take the readind of that

1574






we have require a Motor (1500kW, 6.6kV, 50Hz) which shall operate at 1500rpm during 30min and after it shall run on 500rpm during 15min. The same cycle shall be repetitive during the whole working days. Which method is best and economic to achieve such type of task. VFD, VVFD, Pole changing motor etc.

1493


1)what is the function of a frequency inverter? 2)If a few frequency inverter are connected onto a device network,what are the two setting that will ensure the frequency inverter work properly on the network. 3)whats is the name of the input sensor for weigher? 4)How to confirm that the load cellis faulty? 5)Describe briefly the steps to validate that the weigher is working properly? 6)Describe the procedure to validate the flowmeter accuracy? 7)Describe briefly the steps to validate that the tempreture sensor/transformer is working properly. 8)what is the adjustment that need to be done when you are calibrating the temperature transmitter ? 9)what are the safety measures to be taken before disconnecting motor for rewinding. 10)whats is the synchronous speed in rpm of typical 4pole 50hz motor? 11)whats is the formula for kw, ohm's law 12)if a 3phase motor is rated 3kw,415vac,what is it's rated ampere?

1385


What are the special cables required for explosion proof wiring?

15666


WHAT IS THE FUNCTION OF SHORT CIRCUIT MAINTENANCE CT

2030


iam preparing for rrb section engineer post in electrical branch.suggest the right textbook for my reference.fromwhere i will get the previous q.papers?

1736


What is slip in an induction motor?

651


Which type of DG need Netral Earthing?

4521


What do you mean by turns ratio of instrument transformer?

634


what is sevice settings for mccb?How can be it setted?

1621


please I wont know how to calculate the vector group for power transformer ZNyn11 best regard.

1285