Find the filaments temperature

Assignment Help Physics

Reference no: EM13552302

The tungsten filament of a certain 100 W light bulb radiates 2.50 W of light. (The other 97.5 W is carried away by convection and conduction.) The filament has surface area of 0.150 mm2 and an emissivity of 0.950. Find the filament's temperature. (The melting point of tungsten is 3683 K.)

Reference no: EM13552302

Questions Cloud

Complete orthonormal set of eigenfunctions of the operator : A bound quantum system has a complete set of orthonormal, no-degenerate energy eigenfunctions u(subscript n) with difference energy eigenvalues E(subscript n). The operator B-hat corresponds to some other observable and is such that:

Estimate the magnetic field in the center of the solenoid : A very short solenoid contains N = 20 circular loops of wire. The radius of the loop is R = 0.5 meters, what is the magnetic field in the center of the solenoid

Explain the constant-pressure heat capacity of a sample : The constant-pressure heat capacity of a sample of a perfect gas was found to vary with temperature according to the expression cp/(J K?1) = 20.17 + 0.3665(T/K). Calculate q, w, ?U, and ?H when the temperature is raised from 48°C to 220°C at the f..

Define how many excess electrons has it acquired : On a dry day, your body can accumulate static charge from walking across a carpet or from brushing your hair. If your body develops a charge of -14 (microcoulombs), how many excess electrons has it acquired

Find the filaments temperature : The tungsten filament of a certain 100 W light bulb radiates 2.50 W of light. (The other 97.5 W is carried away by convection and conduction.), Find the filament's temperature

Identify an enterprise technology used in organizations : Identify an enterprise technology used in organizations today that is used to manage the value chain.

Acceleration of ocean liner during this period of time : A boat came to rest at the surface of the ocean before it started to sink. Due to the resistance of the seawater, the sinking boat reached a terminnal velocity of 10m/s for 30 s . Determine the average acceleration of the ocean liner during this peri..

Explain the vapor pressure of water is enclosed : The vapor pressure of water at 25 is 23.76 .If 1.10 of water is enclosed in a 2.0 container,there will be liquid persent. what mass of liquid

Determine the speed of the sled at the bottom of the hill : A hill sled moves from the top of a hill at 1m/s. What is the speed of the sled at the bottom of the hill

User Account

All Pages