if two bulb of 50w &30w apply in series having 230v the
which bulb glow bright ,why

Answer Posted / adel

current pass in two bulb= p/v=80/230=0.35 A
voltage on bulb 50 W= p/i=50/0.35=142 V
voltage on bulb 30W= p/i=30/0.35 =85.7 V
hence bulb 50w is bright

Is This Answer Correct ?    6 Yes 13 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What do you understand by external characteristics of a d.c. Generator?

645


how give earthing conection to household equipment?

1495


Salient pole alternator is more stable, why?

2078


why Y CONNECTION IS BETTER INTERMS OF EFFICIENCY AND P.F FOR A LAOD LESS THAN 40% AND WHY AFTER DELTA IS BETTER FOR > 40%

1483


What is difference is of VSD,VFD,VSDS, are they the same as the direct current to control dc using above mention

996






i have applied for junior engineer 2 c&w for Guwahati RRB please send me last five year question paper

1595


Distribution transformer we provided 2 separate earthing pit for Body and 2 separate earthing pit for neutral,we can not connect separate body earthing pit to other earthing pit but we do metal glanding in secondary side cable termination in both side, transformer and PCC panel (LT Panel), is this safe for transformer and other equipment?

1250


where can i get vijaya electricals limited in hyderabad interview auestions can u give me the website address plz

1639


How do we calculate the resistance per metre of single core aluminium stranded cable 19*3.25mm sheathed in pvc,at 15 deg C temperature?

1936


in dc series motor if field wdg is shorted then

1439


What is the angle of inclination for the oil connection from transformer conservator to Bucholz relay and why?

1699


Is potential difference materials property ..? if yes tnen how.. explain brifly.

1537


What type of pipe material G.I or M.S is used for sprinkler system?

8332


What is the maximum breakdown voltage of 11KVA and 66 KVA power line and how it is calculated?

1815


what could be the RMS value and average value of a 4 phase sine wave?

1419