Acommon flashlight bulb is rated at 0.40 a and 3.0 v (the values of the current and voltage under operating conditions). if the resistance of the bulb filament at room temperature (20°c) is 1.32, what is the temperature of the filament when the bulb is on? the temperature coefficient of resistivity is 5.4 x 10c material. for the filament number units the number of significant digits is set to 2; the tolerance is +/-2%
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Physics, 21.06.2019 23:30
Abeam of electrons with of wavelength of 7.5 x 10-6 m is incident on a pair of narrow rectangular slits separated by 0.75 mm. the resulting interference pattern is projected onto a screen 10.0 m from the slits. what is the separation of the interference maxima in the resulting interference pattern?
Answers: 2
Physics, 22.06.2019 04:30
The current in a hair dryer measures 11 amps. the resistance of the hair dryer is 12 ohms. what is the voltage?unit:
Answers: 1
Physics, 22.06.2019 16:00
The electric potential v is constant everywhere within a certain region of space. which statement below is true? the choices are: the electric field is also constant (but not zero) within the region. a charged particle placed within the region will experience an electric force. the electric field is zero everywhere within the region. the electric field varies from place to place within the region.
Answers: 2
Physics, 22.06.2019 21:00
How is the acceleration of an object in uniform circular motion constant? a - in magnitude only b - in direction only c - in both magnitude and direction d - in magnitude, direction & orientation
Answers: 3
Acommon flashlight bulb is rated at 0.40 a and 3.0 v (the values of the current and voltage under op...
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