The filament is made of tungsten

Assignment Help Physics
Reference no: EM13671666

A common flashlight bulb is rated at 0.300 A and 2.70 V (the values of the current and voltage under operating conditions). If the resistance of the bulb filament at room temperature (20°C) is 1.90 Ω, what is the temperature of the filament when the bulb is on? The filament is made of tungsten.

Reference no: EM13671666

Questions Cloud

Rate at which energy is transferred with heat through glass : A glass windowpane in a home is 0.62 cm thick and has dimensions of 1.1 m multiplied by 1.6 m. On a certain day, the indoor temperature is 20°C and the outdoor temperature is 0°C. What is the rate at which energy is transferred with heat through the ..
Compute the temperature at which a tungsten filament : Compute the temperature at which a tungsten filament that has an emissivity of 0.35 and a surface area of 3.0 10-5 m2 will radiate energy at the rate of 15 W in a room where the temperature is 13°C.
A train starts from rest and accelerates uniformly : A train starts from rest and accelerates uniformly, until it has traveled 3.2 km and obtained a velocity of 22 m/s. The train then moves at a constant velocity of 22m/s for 300 s. The train then slows down uniformly at 0.065 m/s2 until it is brought ..
What is the average force exerted on the nail : The head of a 1.0 kg hammer; moving at 3.6 m/s. strikes a nail and drives it into hardwood. The head stays in contact 2.0 m/s and rebounds with negligible velocity. What is the average force exerted on the nail.
The filament is made of tungsten : A common flashlight bulb is rated at 0.300 A and 2.70 V (the values of the current and voltage under operating conditions). If the resistance of the bulb filament at room temperature (20°C) is 1.90 Ω, what is the temperature of the filament when the ..
Basket is tied to rope and it is stopped by fixed clamp : The basket is tied to a rope and it is stopped by a fixed clamp when it is falling down, I know there is initial KE however how come initial work is negative. Is not force and displacement are in the same direction, so work must be positive?
Snow as the toboggan goes over the top of the rise : Tobogganed coasts down a hill and then goes over a slight rise by speed 1.5 m/s. The top of this rise can be taken to be a circle of radius 3 m. The toboggan and occupant have a combined mass of 110 kg.
Potential dissimilarity-cylindrical resistor of radius : A cylindrical resistor of radius 4.9 mm and length 1.9 cm is made of material that has a resistivity of3.50×10-5 Ω m. What is the current density when the energy dissipation rate in the resistor is 1.0 W? What is the potential dissimilarity?
Write a paper explaining your liberties if you lived in us : Using your race, ethnicity, and gender write a paper explaining your liberties if you lived in US between 1877 and 1928.

Reviews

Write a Review

Physics Questions & Answers

  What is the strength of the electric field 40 cm from a

a what is the strength of the electric field 4.0 cm from a small glass bead that has been charged to 8.0 nc?b what is

  Find what is the speed of the airplane relative to the air

After flying for 15 minute in a wind blowing 42 km/h at an angle of 34 degree south of east, Find the speed of the airplane relative to the air

  How close does the alpha particle get to the gold nucleus

In Rutherfords famous scattering experiments thats led to the planetary model of the atom, How close does the alpha particle get to the gold nucleus before turning around

  Determine the other force

Besides the gravitational force, a 3.05-kg object is subjected to one other constant force. Determine the other force

  What is the thinnest possible coating

A lens with a refrective index of 1.5 is coated with a material of refractive index of 1.2 in order to minimize the reflection. what is the thinnest possible coating

  What is the magnitude of the force exerted by the block

A block of weight 4.5 N is at rest on a horizontal table. An upward vertical force of 2.2 N is applied to the block by means of a string. What is the magnitude of the force exerted by the block

  Illustrate what is the magnitude of the torque

His arm is 70 cm long and has a mass of 4.0 kg. Illustrate what is the magnitude of the torque about his shoulder if he holds his arm straight out to his side, parallel to the floor?

  A man can throw a ball a maximum horizontal distance of 142

a man can throw a ball a maximum horizontal distance of 142 m. the acceleration of gravity is 9.8 ms2 . how far can he

  What is underwater angle of refraction for red component

The index of refraction for red light in water is 1.331 and that for blue light is 1.340. A ray of white light enters the water at an angle of incidence of 80.4°. What is the underwater angle of refraction for the red component of the light?

  Estimate what is the current in the primary coil

A step-down transformer (turns ratio = 1:6) is used with an electric train to reduce the voltage from the wall receptacle to a value needed to operate the train. What is the current in the primary coil

  Determine the average power dissipated by the loop

A current with sinusoidal time-dependence, whose peak value is 5.55 A and frequency is 775 cycles per second, Calculate the average power dissipated by the loop, if its resistance is 64.3

  A patient has a far point of 395 cm and a near point of 214

a patient has a far point of 39.5 cm and a near point of 21.4 cm.a. what power in diopters should be prescribed to

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd