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Vintage Rotory Telephone-Bell System made by Western Electric
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NEW 20 Bruynzeel MXZ Aquarel Colored Pencils, Pigma Micron Pens and Supplies
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TAKE 10% OFF BID! RARE 1988 JACKSON/CHARVEL MODEL 4 FIRE CRACKLE FINISH ORIGNAL
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Mini Hair Twister Gold Original - 4 inch, with Star and Moon Charm, Pink Bead
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Mini Hair Twister Gold Original - 4 inch, with Open Heart Charm Black Bead
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Mini Hair Twister Gold Original - 4 inch, with Open Heart Charm Pink Bead
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Mini Hair Twister Gold Original - 4 inch, with Dolphin Charm Blue Bead
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LOS ANGELES TO OSAKA JAPAN FIRST DIRECT FLIGHT PAM AMERICAN 1967 11c KENNEDY AGM
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#819 14c PIERCE GORGEOUS MNH PLATE BLOCK
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#933 5c FRANKLIN D. ROOSEVELT BEAUTIFUL VF MNH SHEET
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CORNELL WW-II FOXHOLE RAZOR BLADE CRYSTAL RADIO KIT - INCLUDES EARPHONE!
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FLUEGEL 1058 Abraham Lincoln Coil Pair
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RARE 1922 ALDOUS HUXLEY 3 FIRST EDITIONS LSD ADVOCATE BRAVE NEW WORLD AUTHOR
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Mint Set Trans.Coils (80) stamps! Inc Precancels.All NH
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Yamaha : Other Yamaha Roadstar Warrior 1700 Custom
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ANTIQUE HARDWARE STORE CATALOG LOCKS TOOL GARDEN FARMER FARRIER VEHICLES KITCHEN
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Vintage mid-century modern metal mesh telephone stand / magazine rack 50's-60's
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496 Line Pair, Perf 10 Vertical, Rotary Press Coil, F-VF, LH, Pencil Mark on Gum
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MNH Coil Pair Sc #448 with Large Plate Flaw
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LEARN TO BUILD YOUR OWN SOLAR CELLS PANELS DIY KIT
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Vintage dble swing open face door Zenith Portable Tube Radio Works Model 6G801
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Mini Hair Twister Gold Original - 4 inch, with Star and Moon Charm, Pink Bead
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Porsche Cayenne Beru Ignition Coil Set
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Springs & Screw Machine Products 1916, Booklet 7. Wallace Barnes Co. Illustrated
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Mini Hair Twister Gold Original - 4 inch, with Butterfly Charm Black Bead
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Mini Hair Twister Gold Original - 4 inch, with Open Heart Charm Purple Bead
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Mini Hair Twister Gold Original - 4 inch, with Design Charm Black Bead
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Lot 4 Mini Toggle Switch on on + on off on / Guitar DPDT 3PDT DP3T Toggle Switch
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CUSTOM RANGER BUILT 4 Person, 3+ Day Family Survival System - BUG OUT BAG
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Junk Drawer Lot - Coca Cola Cards, Boston Red Sox KeyChain, Las Vegas Dice, More
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Lot DVD drives, speaker phones, ethernet cards, usb hubs, 12volt fans, PS2 mouse
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Pencil Coil

Posted on February 28, 2010.
Pencil CoilA piece of rope is wrapped around a pencil ..?

then attached to a battery to create an electro-magnet. Which of the following would not be a stronger electro?

A. increase the number of turns of wire
B. Changing a battery voltage higher
C. coil packing foil
D. with a rod of iron instead of pencil

trick question, they all increase the power.

A

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