*7. 00 A copper-constantan thermocouple generates a voltage of 4.75 x 10- volts when the temperature of the hot junction is 110.0 °C and the refer- ence junction is kept at a temperature of 0.0 °C. If the voltage is propor- tional to the difference in temperature between the junctions, what is the temperature of the hot junction when the voltage is 1.90 × 10-³ volts?
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- A warms transfers energy by conduction through its blubber at the rate of 150 W when immersed in 1.00 water. The walrus's internal core temperature is 37.0 and it has a surface area of 2.00 m2. What is the average thickness of its blubber, which has the conductivity of fatty tissues without blood?Some incandescent light bulbs are filled with argon gas. What is vrms for argon atoms near the filament, assuming their temperature is 2500 K?*7. Go A copper-constantan thermocouple generates a voltage of 4.75 × 10-3 volts when the temperature of the hot junction is 110.0 °C and the refer- ence junction is kept at a temperature of 0.0 °C. If the voltage is propor- tional to the difference in temperature between the junctions, what is the temperature of the hot junction when the voltage is 1.90 × 10-3 volts?
- A copper-constantan thermocouple generates a voltage of 4.75 x 10-3 volts when the temperature of the hot junction is 110 °C and the reference junction is kept at 0 °C. If the voltage is proportional to the difference in temperature between the junctions, what is the temperature in degrees Celsius of the hot junction when the voltage is 2.45 x 10-³ volts? Number i eTextbook and Media GO Tutorial Units ✪A copper-constantan thermocouple generates a voltage of 4.75 x 10-3 volts when the temperature of the hot junction is 110 °C and the reference junction is kept at 0 °C. If the voltage is proportional to the difference in temperature between the junctions, what is the temperature in degrees Celsius of the hot junction when the voltage is 2.08 x 10-3 volts?The sensitivity of a thermocouple is 0.05 mV/K. If the voltage range is from 0-50 mV and the lowest temperature that can be measured is 273 K. What is the upper limit of the temperature range (in K)?
- Presents the diagram of the problem, necessary formulas, clearance and numerical solution: A poorly designed electronic device has two screws attached to different parts of the device that almost touch each other inside. steel bolts and brass are at different electrical potentials and if they touch, a short circuit will develop will damage the device. The initial separation between the ends of the screws is 5 μm to 27 ◦C. At what temperature will the screws touch? Assume that the distance between the walls of the device is not affected by temperature change and the coefficient coefficients of linear expansion αlaton = 19x10−6 ◦C −1 and αsteel = 11x10−6 ◦C −1Problem 1: An iron-constantan thermocouple is used to measure the temperature in an oven. The cold junction is at ambient temperature of 82oF (about 28oC), and the thermocouple voltage is 12 mV. Use the given information and the table below to: Determine the voltage at the cold junction. Determine the voltage at the hot junction. Determine the approximate temperature of the oven in oC and o40000cm, and at 1000C its length is 40060cm. (a) What is the linear expansion coefficient of the alloy? (b) what is the temperature when its length is 39975cm? (10) A hole with diameter of 2cm is drilled through a stainless steel pate at room temperature (20OC). By what fraction (Dr/r) will the hole be larger when the plate is heated to 1500C? (11) Calculate the fractional change in volume (Dv/v) of an aluminum bar that undergoes a change in temperature of 300C.
- 40000cm, and at 1000C its length is 40060cm. (a) What is the linear expansion coefficient of the alloy? (b) what is the temperature when its length is 39975cm?A copper-constantan thermocouple generates a voltage of 4.75 x 10-3 volts when the temperature of the hot junction is 110 °C and the reference junction is kept at 0 °C. If the voltage is proportional to the difference in temperature between the junctions, what is the temperature in degrees Celsius of the hot junction when the voltage is 2.35 x 10-3 volts? Number i UnitsWhen lead is melted at atmospheric pressure, the melting point is 327 ° C, the density decreases from 1.101 × 104 to 1.065 × 104 kg m-3 and the latent heat is 24.5 kJ/kg. Estimate the increase in melting point of lead, T (in K), at 76 atm.