Problem 6 A 1.40 kW heater uses a 4.80 m long nichrome wire whose diameter is...
The heater element of a toaster is a 5.4 m length of nichrome wire, whose diameter is 0.48 mm. The resistivity of nichrome at the operating temperature of the toaster is 1.3 × 10-6 Ω·m. Assume the toaster is operated at a constant voltage of 120 V. -When the heater element is at room temperature, is the resistivity in the nichrome wire greater than, less than, or equal to its resistivity when at operating temperature? Explain.
The heater element of a particular 120-V toaster is a 8.9-m length of nichrome wire, whose diameter is 0.86 mm. The resistivity of nichrome at the operating temperature of the toaster is 1.3
The heating element in a hair dryer is essentially a wire whose resistance causes it to become red-hot when a current exisits in it. Such wires are usually made of nichrome (a nickel-chromium alloy), whose resistivity is p=1.0*10^-6 ohm*m. (a) Suppose one such wire has a diameter of 0.30 mm and a resistance of 9.0 ohm. What is the length of the wire? (Note that wires like this in a hair dyrer tend to be coiled around to save space)...
Find the resistance of a nichrome wire that is 2.5 m long and has a diameter of 2.0 mm. The resistivity of nichrome is 1.5 x 10-6.
Marvin uses a long copper wire with resistivity 1.68 x 10-8. m and diameter 1.00 x 10-3 m to create a solenoid that has a 3.00 cm radius Part a Calculate the total resistance if Marvin uses 14.2 meters of wire to create the solenoid. Enter answer here 0 of 10 attempts used CHECK ANSWER Part b Calculate how many turns are in the solenoid. Enter answer here 0 of 10 attempts used CHECK ANSWER Part c A 3.00 Volt...
summatize the following info and break them into differeng key points. write them in yojr own words apartus 6.1 Introduction—The design of a successful hot box appa- ratus is influenced by many factors. Before beginning the design of an apparatus meeting this standard, the designer shall review the discussion on the limitations and accuracy, Section 13, discussions of the energy flows in a hot box, Annex A2, the metering box wall loss flow, Annex A3, and flanking loss, Annex...