A 2.8 cm length of tungsten filament in a small lightbulb has a resistance of 0.071 Ω.
Find its diameter. (The resistivity is 5.6×10−8 Ω·m).
Answer in units of mm.
A 2.8 cm length of tungsten filament in a small lightbulb has a resistance of 0.071...
A 1.7 cm length of tungsten filament in a small lightbulb has a resistance of 0.045 Ω. Find its diameter. (The resistivity is 5.6×10−8 Ω·m). Answer in units of mm.
Calculate the diameter of a 1.7 cm length of tungsten filament in a small lightbulb if its resistance is 0.055 (answer must be in mm)
Calculate the diameter of a 1.95 cm long tungsten filament in a lightbulb if its resistance is 0.779 Ω. (The resistivity of tungsten is 5.60×10-8 Ωm.)
Calculate the diameter of a 1.73 cm long tungsten filament in a lightbulb if its resistance is 0.251 Ω. (The resistivity of tungsten is 5.60×10-8 Ωm.)
Calculate the diameter of a 1.55 cm long tungsten filament in a lightbulb if its resistance is 0.497 Ω. (The resistivity of tungsten is 5.60×10-8 Ωm.)
Calculate the diameter of a 1.85 cm long tungsten filament in a lightbulb if its resistance is 0.587 Ω. (The resistivity of tungsten is 5.60x 10-8 Ωm.) Submit Answer Tries 0/99
Calculate the diameter of a 2.27 cm long tungsten filament in a lightbulb if its resistance is 0.319 Ω. (The resistivity of tungsten is 5.60×10-8 Ωm.) This is an easy question but I keep getting it wrong, so I am confused please help. Maybe I am using the incorrect units.
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 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 standard 100 W (120 V) lightbulb contains a 9.10 cm -long tungsten filament. The high-temperature resistivity of tungsten is 9.0×10−7Ωm. What is the diameter of the filament?