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?
Express your answer using two significant figures.
Part B
What will be its resistance with that field?
Express your answer using two significant figures.
Part C
What will be the maximum potential drop over the full length of the filament?
Express your answer using two significant figures.
A cylindrical tungsten filament 14.0 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 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...
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...
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...
(part A)What will be the maximum electric field in this filament? (part B) What will be its resistance with that field? (part C) What will be the maximum potential drop over the full length of the filament? Netflix <HW-Ch25 Exercise 25.15 A cylindrical tungsten filament 17.0 cm long with a diameter of 1.20 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...
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 resistivity of tungsten is 5.0x10^-7 2. A 40W (120V) lightbulb has a tungsten filament of thickness 0.040 mm. The h operating temperature is 1500 C a. How long is the filament? b. What is the resistant of the filament at 20 C? (There is a table in your book with the properties of tungsten you need to check)
The wires leading to and from a 0.12-mm-diameter lightbulb filament are 1.5 mm in diameter. The wire to the filament carries a current with a current density of 4.2x105 A/m . Part A What is the current in the filament? Express your answer to two significant figures and include the appropriate units. GHA O ? Value Units Submit Request Answer - Part B What is the current density in the filament? Express your answer to two significant figures and include...
A cylindrical log 20 cm in diameter and 55 cm long is glowing red hot in a fireplace. Part A If it's emitting radiation at the rate of 38 kW , what is its temperature? The log's emissivity is essentially 1. Express your answer using two significant figures.
Please give step by step solution so I can understand and follow along. I will rate, thank you. 3. A tungsten light bulb filament (see the figure at the right) is a coil of a coil to reduce evaporative losses (the light bulb itself contains an inert gas to also reduce evaporative losses and to also reduce the operating temperature of the filament. The inert gas is usually argon). The uncoiled diameter of the filament is 47 μm and the...