an electric bulb is connected on a holder. one end of the wire
is connected to the phase and the remaining one connected to
earth instead of neutral. the bulb will glow or not? if yes
then what is the need of neutral?
Answer Posted / nagendra
Generally all the distribution transformers have Primary
DELTA and Secondary STAR connection. The neutral of the
STAR is grounded. So the bulb will glow if connect accross
PHASE and NEUTRAL or PHASE and GROUND.
| Is This Answer Correct ? | 4 Yes | 0 No |
Post New Answer View All Answers
What are the necessary components of the feedback control system?
what is the terminal voltage of dc series generator running at rated speed at no load?
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?
Difference between control junction box (cjb) and power junction box(pjb)?
how copper and aluminium wires or cables are choose for current rating? please provide copper and aluminium wire selection chart for different current rating ?
What happen if we apply square wave or traiangular waveform voltage to the transformer primary winding instead of sinusoidal wave?
hi every body i am master student in control engineering and my project is slip control in trains i assumed a Dc motore as traction motor but i don't have characteristics of this kind of motor that is used in train. i want from every body if he or she has the characteristics or information about Dc motor that is used in train give me those information or technical characteristics .
The power factor of the fixed load is 0.8, now the p.f is varying from 0.8 to 0.5.
11KV AND 22KV NETWORK KW CAPACITY IN RING AND RADIAL?
we specify current in case of feeder but in case of distributor voltage, why?
Can anybody post questions asked in Engineers India Limited Interview? Thanks in advance.
if you are in a software company,then why do you want to come in a core company like sail, ntpc(where lots of trouble like tension but you have a good life in a it company) ?
EXPLAIN THE ESSENTIAL FACTORS WHICH INFLUENCES THE CHOICE OF SITE FOR A HYDRO ELECTRIC POWER PLANT
How to calculate the current of Highpressure Mercury Vapour Lamp?what is the basis?whether we have to consider power factor or not?
How the frame size of a flange mounted AC induction motor is calculated?