Apply R = pL/A
14 = (150 X 10-8)(46)/pi(r2)
r = 1.253 mm
d = 2r = 2(1.253) = 2.51 mm
If 46 m of nichrome wire is to have a resistance of 14.0 ohm at 20...
If 43 m of nichrome wire is to have a resistance of 14.0 ? at 20
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.
Problem 6 A 1.40 kW heater uses a 4.80 m long nichrome wire whose diameter is 0.84 m heater requires 110 V across the wire, and you should take the resistivity of nichrome m as its heating element 100 10-8 Ω.m. a) What is the resistance of the wire? b) How much current flows through the wire? c) What is the power dissipated by the wire? riate unit definitions to show that an Amp-squared times an Ohm is equal to...
Spes A nichrome wire has a length of 10.0 m and a resistance of 5.000. What is the radius of the wie Reity of nichrome is 1"10"Om. In mm, 1 significant figure
Nichrome wire is used in some radiative heaters. Find the length of the Nichrome wire needed (in meter) if the area of cross-section of wire is 3.75 mm?, average output is to be 2.00 kW utilizing 220-V AC and the operating temperature is 400°C. Given, resistivity of Nichrome wire at room temperature =1.00-10 ohm motor, and tem. coefficient=4*10*C.
What is the resistance of a 6.4 m length of nichrome wire that has a radius of 0.321 mm? How much current does it carry when connected to a 120 V source? R = _______ Ω I = __________ A
A nichrome wire has a diameter of 0.360 mm. What length of the wire has a resistance of 2.45 Ω?
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)...
A coil of Nichrome wire is 22.0 m
long. The wire has a diameter of 0.410 mm and is at
20.0°C.
Posting this question for the third time. how CAN I report this
issue ?
(b) (i) A piece of nichrome wire (a Ni-Cr alloy) has a resistance of 6.5 . The wire has a length of 10 cm and a diameter of 1.2 mm. Calculate the electrical resistivity and conductivity of this wire. You now connect a voltage source to your Ni-Cr wire, using it as a resistive element. (ii) What would happen to the temperature of the wire ? (ii) What would happen to the resistance as the temperature changes ? (iv) Why...