# science

why do lightbulbs burn out?? i know it has somethign to do with the filament but that's it thanks?

The filament simply burn in two and there is no longer a physical connection "inside" the bulb.

1. 👍
2. 👎
3. 👁

## Similar Questions

1. ### chemistry

The diameter of the tungsten wire in a light bulb filament is bery small, less than two thousandths of an inch, or about 1/20 mm. THe mass of the filament is so very small - 0.0176 grams - that it would take 1,600 filaments to

2. ### Mathematics

Ms. Gallegos burn 236 calories riding her bike each our. she wants to burn more that 590 calories riding her bike at the same rate which inequality represents all possible values for for t the number of hours Ms. Gallegos must

3. ### Physics

Calculate the current in the 240-Ώ filament of a bulb connected to a 120-V line. Power = IV

4. ### AP CHEM HELP!

How many unpaired electrons are present in each of these species? (a) 1s22s23p1 1 ground-state= __________ (b) 1s2 2s2 2p6 0 ground-state=______________ I Cant get the ground state config i think there might be somethign wrong...

1. ### Science

Explain how each of the flower parts (petals,pistil, stamen, stigma, ovule, ovary, filament, anther,style) work in reproducing the flower. My answer: The petals are there to attract pollinators. A pollinator, like a bee, goes to a

2. ### Physics

A 40 W (120V) light bulb has a tungsten filament of thickness 0.035 mm. The filament's operating temperature is 1500 degrees C. PART A How long is the filament? PART B What is the resistance of the filament at 20 degrees C?

3. ### Global

"The Bantu cleared the land, then fertilized it with ashes. When the land could no longer support their families, the Bantu moved further south. By 1110 B.C., the Bantu had spread their rich culture throughout central and southern

4. ### math

Courtney burns 180 calories per 30 minutes of hiking. Complete the table to chart her calorie expenditure for different amounts of time. Time(minutes)​ 30 10 5 20 75 45 ​Calories Burned _ _ _ _ _ _ 1.​How many calories will

1. ### Anatomy

Which statement is correct regarding thick filament structure? All the myosin molecules are arranged with their tails pointing away from the M line. The free myosin head has three globular protein subunits. It consists of a core

2. ### Physics

The filament of a 60W lightbulb is at 2.8kK. What's the surface area of the filament?

3. ### math

a factory produces 150,000 lightbulbs per day. the manager of the factory estimates that fewer than 1,000 defictive bulbs are produced each day . in a random sample of 250 lightbulbs , there are 2 defictive bulbs . determine

4. ### physics

There are electrons in the filament of the ac lamp in your bedroom. When you turn on the lamp and it glows, the glowing comes from A) the positive charges that flow in the filament.B) the same electrons.C) different electrons; the