The filament of an evacuated light bulb has a length 10 cm, diameter 0.2 mm and emissivity 0.2, calculate the temperature of the filament, if the power radiated by filament is 11.4 watt.

Q: n immersion heater of power 2500 W supplies energy to 3 kg of water at 25°C for 5 minutes The…

A: Given: The power of the immersion heater is 2500 W. The time interval is 5 min. The mass of the…

Q: As shown below, an insulated gold wire is immersed in 466 g of water at 22 °C. The wire is 4.9 cm…

A: The mass of the water is given as, m=466 g (or) m=0.466 kg. The initial temperature of the water is…

Q: Some incandescent light bulbs are filled with argon gas. What is vrms (in m/s) for argon atoms near…

A: Given data:  Temperature (T) = 2900 K

Q: Consider a person whose exposed surface area is 1.7 m2, emissivity is 0.5, and surface temperature…

A: Heat flow takes place from a region of higher temperature to a region of lower temperature.    In…

Q: The operating temperature of a tungsten filament in an incandescent light bulb is 2500 KK, and its…

A:

Q: water heater is operated by solar power. If solar collector has an area of 6.00m2 , and the…

A: Volume of water = 1m3Density of water p = 1000 kg/m3Area of solar collector = 6m2Intensity by…

Q: If the energy received by 5 m2 area in 10 minutes is 4200 kJ, calculate the value of solar constant.

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Q: What is the average energy contained in a 1.00 m3volume near the Earth’s surface due to radiant…

A: The expression for energy density stored in electric field as, u=12ε0E02 The equation for the…

Q: Light bulb 1 operates with a filament temperature of 2700 K, whereas light bulb 2 has a filament…

A: Given: The temperature of the filament of bulb 1 is 2700 K. The temperature of the filament of bulb…

Q: Consider a person whose exposed surface area is 1.7 m2, emissivity is 0.5, and surface temperature…

A: Heat flow takes place when there is a thermal gradient. One of the ways by which the heat flow is…

Q: Light bulb 1 operates with a filament temperature of 2900 K, whereas light bulb 2 has a filament…

A:

Q: Imagine choosing between two winter jackets. Assume you have access to a heat-generating mannequin…

A: Given: In order to generate a temperature difference (T), an insulation product must be placed…

Q: 38 Ω 28 Q +4.8V 80 Q

A: Power = current * potential difference Therefore, first we need to determine current in circuit,…

Q: The next four questions use this description.  Our Sun has a peak emission wavelength of about 500…

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Q: The room thermostatis set at 68.0oC. What is thetemperature setting for the room indegrees…

A: