Physics, 08.10.2019 02:30 xDANTEx2456
Acylindrical tungsten filament 17.0cm long with a diameter of 1.20mm 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 12.5a at all temperatures ( resistivity of tungsten at 20 ? c is 5.25�10? 8? ? m , the temperature coefficient of resistivity at 20 ? c is 0.0045 ? c? 1 )a) what will be the maximum electric field in this filament? express your answer using two significant figures. b) what will be its resistance with that field? express your answer using two significant figures. c) what will be the maximum potential drop over the full length of the filament? express your answer using two significant figures.
Answers: 3
Another question on Physics
Physics, 22.06.2019 00:00
Name three different units of energy used to measure heat and describe what type of situations each is usually used.
Answers: 1
Physics, 22.06.2019 10:00
Aria drove to the store, did some shopping, and then came home. during maria's trip, when was her displacement equal to zero?
Answers: 1
Physics, 22.06.2019 11:20
If a rock is thrown upward on the planet mars with a velocity of 12 m/s, its height (in meters) after t seconds is given by h = 12t − 1.86t2. (a) find the velocity of the rock after two seconds. m/s (b) find the velocity of the rock when t = a. 12−3.72a m/s (c) when will the rock hit the surface? (round your answer to one decimal place.) t = s (d) with what velocity will the rock hit the surface? m/s
Answers: 1
Physics, 22.06.2019 11:30
With the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 1.90
Answers: 1
You know the right answer?
Acylindrical tungsten filament 17.0cm long with a diameter of 1.20mm is to be used in a machine for...
Questions
Mathematics, 31.08.2020 01:01
Mathematics, 31.08.2020 01:01
Mathematics, 31.08.2020 01:01
Geography, 31.08.2020 01:01
