why is the resistance of a light bulb filament kept high?
if the resistance of the bulb is so high it means a tiny current flows in to it , then how does the bulb glow with such a tiny current?
Wow. OK, the resistance of the filament ins what “makes it difficult” for the current to pass through. The current overcoming that difficulty is what causes the filament to get hot. The filament glows because it’s hot.
It’s not that a “tiny current flows in to it”, it’s that only a tiny current can pass through it. The same current flows “in to” the bulb as flows “in to” your air conditioner.
Remember, 90 percent of the energy used in lighting is given off as heat; 10 percent is light.
Glow Up Bulb Next High Dollar Yugioh Card?
|
|
2 PCS (HIGH BEAMS) 3000K H9 100W HALOGEN XENON GOLDEN YELLOW LIGHT BULBS $12.99 |
|
|
D1R D1S D1C OEM Xenon HID 8000K Light Bulbs High or Low Beam Light Blue 5119 $35.99 |
|
|
9005 LED High Beam Daytime Running Lights Acura Honda $59.99 |
|
|
E27 PAR30 7W High Power LED Cool White Light Lamp Bulb $13.99 |
|
|
Halogen 9005 BOX Xenon Light Bulb 12v 100W WHITE 5500K High Beam 5095 $8.95 |
|
|
*NEW* GE Lucalox High Pressure Sodium Clear B17 Bulb Medium (E26) Base $14.50 |
|
|
*NEW* GE Lucalox High Pressure Sodium Clear B17 Bulb Medium (E26) Base $14.50 |
|
|
100 Yellow Amber Super Bright 1206 SMD LED Light bulbs Car SMT Brightness High $5.83 |
|
|
9007 HB5 55W High Low Xenon HID Replacement Super Yellow Light Bulbs Dj3 $5.99 |
|
|
9004 100W x2 pcs High/ Low Xenon HID Direct Replace Super Yellow Light Bulbs Aw9 $5.99 |
|
|
2pc 1157/Bay15d White T25 36 High Power LED Brake/Stop Tail Light Bulb DC 12V $13.00 |
|
|
2pc 1157/Bay15d Super White T25 36 High Power LED Parking/Park Light Bulb DC 12V $13.00 |
|
|
2pc 1157/Bay15d White T25 36 High Power LED Front Turn Signal Light Bulb DC 12V $13.00 |
|
|
2pc 1157/Bay15d Super White 36 High Power LED Tail Light Rear Lamp Bulb DC 12V $13.00 |
|
|
H7 55W DOT 12V High/ Low/ Fog Direct Fit Xenon HID Golden Yellow Bulbs Kr2 $5.99 |
|
|
TOPIN NEW High Quality 3W LED Ceiling Down Bulb Warm Light Lamp 85-260V $0.99 |
|
|
Halogen 9005 Xenon Light Bulbs 12v 100W 5000K WHITE 2pc High Beam 5088 $7.95 |
|
|
M GE High Low beam Halogen headlight replacement bulb light 9004 $7.00 |
|
|
10W 10 Watt High Power LED Light Lamp Bulb 16000K DIY $6.99 |
|
|
9W MR16 12V High Power 3x3W CREE Warm White LED Spot Light Bulb Lamp $5.20 |
|
|
9005 LED High Beam Bulbs Daytime Running Lights Lexus $55.99 |
|
|
New Xen Lux 400 watt High Pressure Sodium 400w HPS Grow Light Bulb HID Lamp $20.88 |
|
|
5 Set H7 12V 55w Xenon HID High Beam Light Bulbs Combo $20.95 |
|
|
9W GU10 110V-240V High Power 3x3W CREE Cool White LED Spot Light Bulb Lamp $2.88 |
|
|
7W E27 LED Lamp Bulb Warm Light 85-260V High Power Super Bright Energy Saving $4.59 |
|
|
3W MR16 Bulb High Power Cool White Focus 3 LED Spot Lamp Energy Saving DC/AC 12V $0.16 |
|
|
STAINED GLASS TABLE LAMP IN BROWNS 15″ HIGH WITH FINIAL 17″W 2 BULB SOCKET $189.99 |
|
|
AMBER T10 HI-POWER LED BULBS 2825/168 TRUNK/CARGO LIGHT $12.99 |
|
|
500 yellow green super bright 1206 smd led light bulbs car SMT Brightness High $25.88 |
|
|
H1 55W Pair High/ Low Beam Fog Light Xenon HID Super White Light Bulbs Uw2 $5.88 |
|
|
Blue/White 9004 Bi Xenon HID Look Halogen High & Low Beam Headlight Bulbs $9.99 |
|
|
Blue/White 9007 Bi Xenon HID Look Halogen High & Low Beam Headlight Bulbs $9.99 |
|
|
Blue/White 9007 Bi Xenon HID Look Halogen High & Low Beam Headlight Bulbs $9.99 |
|
|
Blue/White H4 9003 Bi Xenon HID Look Halogen High & Low Beam Headlight Bulbs $10.49 |
|
|
Blue/White 9007 Bi Xenon HID Look Halogen High & Low Beam Headlight Bulbs $9.99 |
|
|
Blue/White 9007 Bi Xenon HID Look Halogen High & Low Beam Headlight Bulbs $9.99 |
|
|
Blue/White 9007 Bi Xenon HID Look Halogen High & Low Beam Headlight Bulbs $9.99 |
|
|
Blue/White 9007 Bi Xenon HID Look Halogen High & Low Beam Headlight Bulbs $9.99 |
|
|
Blue/White 9007 Bi Xenon HID Look Halogen High & Low Beam Headlight Bulbs $9.99 |
|
|
Blue/White 9004 Bi Xenon HID Look Halogen High & Low Beam Headlight Bulbs $9.99 |
|
|
iSi N2O Cream Chargers, 24-Pack $12.75 Ideal for restaurant and foodservice operations. Whip up to 5x the amount of cream, desserts and more in seconds! Easily portable from prep to service areas. New Thermo Whip keeps recipes hot or cold at room temperature for hours!… |
|
|
Tovolo Clear Dripless Baster $7.70 The kitchen must-have for any type of holiday entertaining, large family meals or special get-togethers. A uniquely designed valve keeps the baster from dripping. Clear cylinder allows you to see how much liquid is inside. It fits comfortably in in your hand. The removable tip and brush make clean up fast and easy; all parts are dishwasher safe. Baster measures 11.5 inches in length and also comes… |
|
|
Nostalgia Circus-Cart Popcorn Makers At just under 5 feet, this tall, circus-style popcorn cart will be the hit of every party. This full-sized cart pops up to 1.5 gallons of movie-house quality popcorn per batch. Despite its old-fashioned, street-corner look, the Circus Cart Popcorn Maker is designed for use in your home so you can prepare hot, fresh popcorn anytime. It features a large, stainless steel kettle with a built in sti… |
|
|
MANswers 307 $1.99 … |
|
|
aluminum pots and pans, artificial limbs, peanut butter and high intensity $1.99 … |
|
|
Earthmate EP2357AE 23-Watt Spiral CFL Full Spectrum Bulb, 6 Pack $54.95 … |
|
|
Earthmate EP2352AK 23-Watt Super Mini-Spiral CFL 2700K Bulb, 6 Pack $39.50 … |
|
|
Earthmate EP3057AE 30-Watt Spiral CFL Full Spectrum Bulb, 6 Pack $81.47 … |
|
|
3, MINI, SHADES, for, CHANDELIER, or, CANDLE LIGHTS, OFF-WHITE, CLIP-ON, LAMP SHADE, for, CANDELABRA BULBS, NEW, HEAVY DUTY, LAMP SHADE, with, DOUBLED, SILK CREAM, FABRIC, for, UPDATING YOUR HOME, LIGHT, SHADE, 3 SQUARE TOP, 5 SQUARE BOTTOM, 4 TALL, HIGH QUALITY, LIGHT SHADES, at BELOW, WHOLESALE, PRICES, UPC609722846769 $29.99 3, MINI, SHADES, for, CHANDELIER, or, CANDLE LIGHTS, OFF-WHITE, CLIP-ON, LAMP SHADE, for, CANDELABRA BULBS, NEW, HEAVY DUTY, LAMP SHADE, with, DOUBLED, SILK CREAM, FABRIC, for, UPDATING YOUR HOME, LIGHT, SHADE, 3″ SQUARE TOP, 5″ SQUARE BOTTOM, 4″ TALL, HIGH QUALITY, LIGHT SHADES, at BELOW, WHOLESALE, PRICES, UPC609722846769… |
|
|
4, MINI, SHADES, for, CHANDELIER, or, CANDLE LIGHTS, OFF-WHITE, CLIP-ON, LAMP SHADE, for, CANDELABRA BULBS, NEW, HEAVY DUTY, LAMP SHADE, with, DOUBLED, SILK CREAM, FABRIC, MINI SHADES, for, UPDATING YOUR HOME, LIGHT, SHADE, 3 SQUARE TOP, 5 SQUARE BOTTOM, 4 TALL, HIGH QUALITY, LIGHT SHADES, at BELOW, WHOLESALE, PRICES, UPC609722846769 $39.99 4, MINI, SHADES, for, CHANDELIER, or, CANDLE LIGHTS, OFF-WHITE, CLIP-ON, LAMP SHADE, for, CANDELABRA BULBS, NEW, HEAVY DUTY, LAMP SHADE, with, DOUBLED, SILK CREAM, FABRIC, MINI SHADES, for, UPDATING YOUR HOME, LIGHT, SHADE, 3″ SQUARE TOP, 5″ SQUARE BOTTOM, 4″ TALL, HIGH QUALITY, LIGHT SHADES, at BELOW, WHOLESALE, PRICES, UPC609722846769… |