what is the principle of operation of tungstun bulb ??
Answers were Sorted based on User's Feedback
Answer / dilli babu
tungstun having high resistance.In tungstun bulb the tungstun is made into a conductor of very small area of cross section. due to the small are of cross section, the resistance will be increased. that too that small conductor is made into a small spiral to increase the length of conductor.
Whenever the cuurrent flows through the conductor there will be a eddy current loss. this eddy current loss dissipated in the form of heat. Due to the low area of cross section in the tungtun filament resistance is high. So the flow of the current is opposed and the eddy current also increased. So the filament becomes heat and the heat leads to gives the illumination.
Is This Answer Correct ? | 8 Yes | 2 No |
its based on Einsteins photoelectric effect
Is This Answer Correct ? | 0 Yes | 2 No |
transformer is connected with 50hz and 60hz at same rating which will give more output on same rating
we want to feed 3 phase supply to 70 ton AC load.what will be the size of (3 phase)cable require.
What is the Diesel consumption between 82KVA DG Set and 180KVA DG Set for 1 hour.
What is corona? and what is the purpose of corona belt in substation ? why they connect these end of the buses ?
what is the difference between equipment earth and system earth.
What is the function of the serge absorber?
which motor is used in high mast ( street light) & give the hight of tower .
2 Answers Construction, Honda,
What is the difference between class0.1 and class 0.1s accuracy of current transformers
Can double compression glands be used with regular cables?
what is star delta starter? how it works? give its control and power diagram.
0 Answers Bhel, Point to Point Solution, Star Wire,
Your B.tech marks is being given in CGPA grade. How is it calculated?
How i can decide that HVDC line is best for transmission.