Physical Science for ProgressPrentice-Hall, 1970 - 626 σελίδες |
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Σελίδα 200
... wire ( # 22 ) 5 feet long . Connect them as shown . What is the current ? Repeat the experiment with copper wire of the same length and size . Which wire permits the larger current ? Five feet of iron wire Five feet of copper wire The ...
... wire ( # 22 ) 5 feet long . Connect them as shown . What is the current ? Repeat the experiment with copper wire of the same length and size . Which wire permits the larger current ? Five feet of iron wire Five feet of copper wire The ...
Σελίδα 206
... wires ? or or or 12 = 24 R1 ACTIVITY Connect a 3 - inch piece of No. 30 copper wire to a similar piece of nichrome wire . Attach them to a dry cell . Result ? No. 30 copper wire 171 = 14 12 ။ -2 R1 No. 30 nichrome wire R1 = 2 ohms This ...
... wires ? or or or 12 = 24 R1 ACTIVITY Connect a 3 - inch piece of No. 30 copper wire to a similar piece of nichrome wire . Attach them to a dry cell . Result ? No. 30 copper wire 171 = 14 12 ။ -2 R1 No. 30 nichrome wire R1 = 2 ohms This ...
Σελίδα 207
... wire hotter 7 BUSS Underw The nichrome wire gets hotter as cells are added . This is easily explained if you understand these factors : ( 1 ) The voltage is increased as cells are added in series . ( 2 ) The resistance of the wires ...
... wire hotter 7 BUSS Underw The nichrome wire gets hotter as cells are added . This is easily explained if you understand these factors : ( 1 ) The voltage is increased as cells are added in series . ( 2 ) The resistance of the wires ...
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distributors of the John Frankenheimer film Grand Prix A General Electric Company 337 bottom rightGeneral Electric | 92 |
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acid acting ACTIVITY added amount atoms beam become body called carbon causes cell charges chemical chemical change circuit color combining compounds connected contains copper determined direction distance earth effort electrical electrical charges electrons elements energy engine equal experiment explain facts feet FIGURE flow force fuel gain gives glass grams happens heat hour hydrogen inch increases ions iron kinds lamp laser layer length light liquid magnet mass materials matter means measure metal miles mirror molecules moon motion move nature needed object oxygen particles piece plane plate pole position pounds pressure produced push rays reflected resistance Result rock scientists shell side sodium solution sound space speed spring stars Study surface temperature Terms theory travels tube turns units waves weight wire