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The resistivity of tungsten is 5.0x10^-7
2. A 40W (120V) lightbulb has a tungsten filament of...
A certain lightbulb has a tungsten filament with a resistance of 19.0 Ω when at 20.0°C...
A certain lightbulb has a tungsten filament with a resistance of 19.0 Ω when at 20.0°C and 140 Ω when hot. Assume the resistivity of tungsten varies linearly with temperature even over the large temperature range involved here. Find the temperature of the hot filament.
A tungsten filament in an incandescent bulb has the following properties when the bulb has been...
A tungsten filament in an incandescent bulb has the following properties when the bulb has been connected to an ideal 1.5 volt battery for a long time: • temperature = 2800 K • resistivity at this temperature = 8.47E-7 Ωm • length = 0.30 m • diameter = 0.52 mm You may assume that any other parts of the bulb and the wires have no resistance. 1. Determine the resistance of the tungsten filament. 2. Determine the current through the tungsten filament....
A cylindrical tungsten filament 13.0 cm long with a diameter of 1.00 mm is to be...
A cylindrical tungsten filament 13.0 cm long with a diameter of 1.00 mm is to be used in a machine for which the temperature will range from room temperature (20 ∘C) up to 120 ∘C. It will carry a current of 12.5 A at all temperatures ( Resistivity of tungsten at 20 ∘C is 5.25×10−8Ω⋅m , the temperature coefficient of resistivity at 20 ∘C is 0.0045 ∘C−1 ) What will be the maximum electric field in this filament? What will...
The filament of a 100 W (120 V) light bulb is a tungsten wire 0.035 mm in diameter
The filament of a 100 W (120 V) light bulb is a tungsten wire 0.035 mm in diameter. At the filament's operating temperature, the resistivity is 5.0 × 10-7 Ω·m Part AHow long is the filament? Express your answer using two significant figures
The filament of a 100 W (120 V) light bulb is a tungsten wire 0.035 mm...
The filament of a 100 W (120 V) light bulb is a tungsten wire 0.035 mm in diameter. At the filament's operating temperature, the resistivity is 5.0×10−7Ω⋅m. How long is the filament? L=? m
A cylindrical tungsten filament 15.0 cm long with a diameter of 1.10 mm is to be...
A cylindrical tungsten filament 15.0 cm long with a diameter of 1.10 mm is to be used in a machine for which the temperature will range from room temperature (20 ∘C) up to 120 ∘C. It will carry a current of 13.5 A at all temperatures ( Resistivity of tungsten at 20 ∘C is 5.25×10−8Ω⋅m , the temperature coefficient of resistivity at 20 ∘Cis 0.0045 ∘C−1 ) Part B What will be its resistance with that field? Express your answer...
A cylindrical tungsten filament 14.0 cm long with a diameter of 1.10 mm is to be...
A cylindrical tungsten filament 14.0 cm long with a diameter of 1.10 mm is to be used in a machine for which the temperature will range from room temperature (20 ∘C) up to 120 ∘C. It will carry a current of 12.5 A at all temperatures ( Resistivity of tungsten at 20 ∘C is 5.25×10−8Ω⋅m , the temperature coefficient of resistivity at 20 ∘C is 0.0045 ∘C−1 ) Part A What will be the maximum electric field in this filament?...
Review Con: Part A An incandescent light bulb uses a coiled filament of tungsten that is...
Review Con: Part A An incandescent light bulb uses a coiled filament of tungsten that is 580 mm long with a diameter of 46.0 um. At 20.0°C tungsten has a resistivity of 5.25 x 1012.m. Its temperature coefficient of resistivity is 0.0045 (Cº) , and this remains accurate even at high temperatures. The temperature of the filament increases linearly with current, from 20°C when no current flows to 2520°C at 1.00 A of current What is the resistance of the...
A 100-W lightbulb has a resistance of about 12 Ω when cold (20 ∘C) and 136 Ω when on (hot). Estimate the temperature of the filament when hot assuming an average temperature coefficient of resistivity α=0.0045(C)−1.
Please, no referring. A 100-W lightbulb has a resistance of about 12 Ω when cold (20 ∘C) and
136 Ω when on (hot). Estimate the temperature of the filament when hot
assuming an average temperature coefficient of resistivity
α=0.0045(C)−1.
Chapter 25 Homework Exercise 25.15-Enhanced - with Solution 7 of 19 What will be the maximum...
Chapter 25 Homework Exercise 25.15-Enhanced - with Solution 7 of 19 What will be the maximum electric field in this filament? Constants Express your answer using two significant figures. A cylindrical tungsten filament 17.0 cm long with a diameter of 1.00 mm is to be used in a machine for which the temperature will range fr temperature (20 °C) up to 120 ° C. It will carry a current of 14.0 A at all temperatures (Resistivity of tungsten at 20...
The filament of a 100 W (120 V) light bulb is a tungsten wire 0.035 mm in diameter. At the filament's operating temperature, the resistivity is 5.0 × 10-7 Ω·m Part AHow long is the filament? Express your answer using two significant figures
Review Con: Part A An incandescent light bulb uses a coiled filament of tungsten that is 580 mm long with a diameter of 46.0 um. At 20.0°C tungsten has a resistivity of 5.25 x 1012.m. Its temperature coefficient of resistivity is 0.0045 (Cº) , and this remains accurate even at high temperatures. The temperature of the filament increases linearly with current, from 20°C when no current flows to 2520°C at 1.00 A of current What is the resistance of the...
Chapter 25 Homework Exercise 25.15-Enhanced - with Solution 7 of 19 What will be the maximum electric field in this filament? Constants Express your answer using two significant figures. A cylindrical tungsten filament 17.0 cm long with a diameter of 1.00 mm is to be used in a machine for which the temperature will range fr temperature (20 °C) up to 120 ° C. It will carry a current of 14.0 A at all temperatures (Resistivity of tungsten at 20...
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