two bulbs of 100w and 40w respectively connected in paralel
across a 230v supply.which bulb will glow bright and why?
Answers were Sorted based on User's Feedback
Answer / anna
100w bulb will glow with more brightness due to parallel
connection.
Is This Answer Correct ? | 25 Yes | 5 No |
Bulbs have filament and its light depends on how hot the filament is. The greater the current, the hotter will be the filament, and the brighter will the bulb lit.
Since both the bulbs are connected in parallel, the voltage across them will be equal, 100 watt bulb will have (100/230)= 0.435 amp of current while 40 watt bulb will have (40/230) = 0.174 amp of current passing through it. Hence 100 watt bulb will be brighter.
Is This Answer Correct ? | 9 Yes | 1 No |
Answer / shivam
Both Bulb is glow Bright Same,Because it connected in paralel.
Is This Answer Correct ? | 2 Yes | 11 No |
what is the minimum requirement gigaohms for the insulation test using 5kv in 300mm xlpe cable
What are the major types of Curent Transformers?
Is there any rule to select the voltage of motor based on KW rating? What is the rating above which lt motor becomes the HT motor?.
what is derating factor in Cable ? how we minimise this?
18 Answers Bhel, College School Exams Tests,
what are the alternator cooling system? how it is represented?
How does PLC work for sychronising of Two or more DG sets?
HAT IS THE EFFECT OF LOW POWER FACTOR ON THE GENERATING STATION?HOW WILL YOU IMPROVE THE LOW POWER FACTOR?
why is only third harmonics is dangerous for electrical equipments?
what is high and low cut off voltage of BB and DG at SPS????????
How a band pass filter is constructed?
how to reduce shorting current in a slipring induction motor
what is VFD and where is use of it