If the 0.190 mm diameter tungsten filament in a light bulb is to have a resistance of 0.122 N at 20.0°C, how long should it be? The resistivity of tungsten at 20.0°C is 5.60 x 108 n · m.
Q: If the 0.185 mm diameter tungsten filament in a light bulb is to have a resistance of 0.103 Ω at…
A: Given data: Diameter (d) = 0.185 mm = 0.185×10-3 m Resistance (R) = 0.103 Ω Resistivity (ρ) =…
Q: Resistance depends on the size and shape of a conductor. We expect a long wire to have higher…
A: Given data: Resistivity (ρ) = 12.08×10-8 Ω.m Length (L) = 14.22 mm = 14.22×10-3 m Diameter (d) =…
Q: Gold is the most ductile of all metals. For example, one gram of gold can be drawn into a wire 2.38…
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Q: Resistance depends on the size and shape of a conductor. We expect a long wire to have higher…
A: Ans:- Image-1
Q: A certain light bulb has a tungsten filament with a resistance of 13.0 Ω when cold ( 20.0°C ) and…
A: Consider the given data as below. Resistance of the filament, Ro=13.0 Ω Reference temperature,…
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Q: A piece of wire has resistance of 1.25 2. The wire is made of a material with resistivity 8.2x10-7…
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Q: The resistance of a copper wire is measured to be 3.80 Ω at 21.6°C. What is the resistance of this…
A: Write down all the given parameters and formula
Q: A copper wire has a resistance of 0.500 Ω at 20.0 °C, and an iron wire has a resistance of 0.525 Ω…
A: The resistance of the copper wire at 20.0 °C, The resistance of the iron wire at 20.0 °C,
Q: A conductor having a resistance of 50 ohms has temperature coefficient of resistivity of 4.143x10^-3…
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Q: A certain lightbulb has a tungsten filament with a resistance of 18.5 N when cold and 136 N when…
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Q: lông L tungster re if it has a diam 0.137 × 10-3 m and a resistance of 3.41 k2? The resistivity of…
A: GivenDiameter of wire (d)=0.137×10-3 mResistance(R)=3.41×103 ohm Resistivity of Tungsten…
Q: The temperature coefficient of resistivity for the metal gold is 0.0034 (C°)-1, and for tungsten it…
A: Given αgold=0.0034 (C0)-1 αtungsten=0.0045 (C0)-1∆RRgold=7.9%
Q: A given copper wire has a resistance of 5.02 Ω at 20.0°C while a tungsten wire of the same diameter…
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Q: If the resistivity of a particular wire is 75.56x10-8 Ω⋅m, the wire is 48.16mm in length, and the…
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Q: A common flashlight bulb is rated at 0.25 A and 2.6 V (the values of the current and voltage under…
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Q: If the 0.140 mm diameter tungsten filament in a light bulb is to have a resistance of 0.290 Ω at…
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Q: esistance depends on the size and shape of a conductor. We expect a long wire to have higher…
A: Given: ρ=12.08*10-8 Ωl = 14.22 mr = 1.33 m
Q: If the 0.100 mm diameter tungsten filament in a light bulb is to have a resistance of 0.162 2 at…
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Q: An aluminum rod with a square cross section is 2.3 m long and 6.5 mm on edge. (a) What is the…
A: Given resistivities of the Aluminum and Copper are, ρAl=2.75×10-8 Ω mρCu=1.69×10-8 Ω m The…
Q: A copper wire has a resistance of 0.505 Ω at 20.0°C, and an iron wire has a resistance of 0.537 Ω at…
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Q: A copper wire has a resistance of 0.400 Ω at 20.0°C, and an iron wire has a resistance of 0.426 Ω at…
A: To determine: The temperature at which the resistance of the copper and iron will be equal Given:…
Q: If the 0.130 mm diameter tungsten filament in a light bulb is to have a resistance of 0.100 Ω at…
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Q: A thin copper wire with a diameter 2.5 mm is connected to a 1.2-V potential difference, a current of…
A: The voltage and current is given. So using ohm's law we can calculate the resistance by, V=IR R is…
Q: A wire with a temperature coefficient of resistance (-0.0060/C) has a resistance of 5.64 at 20° and…
A: The two wires have the same resistance at 26.52°C temperature.
Q: the 0.145 mm diameter tungsten filament in a light bulb is to have a resistance of 0.185 Ω at…
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Q: Resistance
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Q: A copper wire has a resistance of 0.375 2 at 20.0\deg C, and an iron wire has a resistance of 0.400…
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Q: The resistance of a coil of copper wire is 4 Ω at 5 °C . What is the resistance at 55 °C . The…
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- Suppose you're using a copper wire that has a radius of 0.5 mm, is 3.8 m long, and has a resistivity p=1.7 x 10 8 N- m. What is the resistance of the wire in Ohms?A platinum resistance thermometer has a resistance R0 = 50 Ω at atemperature To of 20 °C. The temperature coefficient of resistance for theconductor for Pt (α) is 3.92 x 10-3 (°C)-1. The thermometer is immersed in avessel containing molten tin, at which point the resistance increases to 92.8Ω. What is temperature of the liquid tin?What length of gold wire, of radius 0.27 mm, is needed to make a 15.5 Ω resistor, if the resistivity of gold is 2.44×10-8 Ω·m? The length, L =
- If the 0.130 mm diameter tungsten filament in a light bulb is to have a resistance of 0.230 Ω at 20.0°C, how long should it be?A common flashlight bulb is rated at 0.34 A and 2.3 V (the values of the current and voltage under operating conditions). If the resistance of the bulb filament at room temperature (20°C) is 1.0 2, what is the temperature of the filament when the bulb is on? The temperature coefficient of resistivity is 3.7 x 10-3 K-1 for the filament material.Two copper wires have the same volume, but wire 2 is 25 % longer than wire 1. The ratio of the resistances of the two wires R2/R1 is ( Hint: radius will not be same) 0.82 0.91 1.2 1.56 1.0
- Gold is the most ductile of all metals. For example, 2 gram of gold can be drawn into a wire 2.4 km long. The density of gold is 19.3 x 103 kg/m3, and its resistivity is 2.44 x 10-8 Vm. What is the resistance of such a wire at 20.0°C? 2984 Ohms 1356 Ohms 1356250 Ohms 565OhmsA 2.0 mm diameter iron wire ( resistivity, p = 9.7 x 10-° 2-m) carries a current of 2.5 A. Determine the potential difference across this 20m length of the wire. (A 1.544 v B 0.544 v C) 1.618 v 0.618 vA copper wire has a resistance of 0.565 N at 20.0°C, and an iron wire has a resistance of 0.597 N at the same temperature. At what temperature are their resistances equal? The temperature coefficient of resistivity for copper is 3.90 x 10-3(°C)-1 and for iron it is 5.00 x 10-3(°C)-1. °C
- How long is a tungsten wire if it has a diameter of 0.179 x 10-3m and a resistance of 2.63 k2? The resistivity of tungsten is 5.62 x 10-* 2-m. length of the wire:An aluminum rod with a square cross section is 1.8 m long and 6.2 mm on edge. (a) What is the resistance between its ends? (b) What must be the diameter of a cylindrical copper rod of length 1.8 m if its resistance is to be the same as that of the aluminum rod? The resistivity of aluminum is 2.75 x 108 Q-m and the resistivity of copper is 1.69 x 108 Q:m. (a) Number i Units (b) Number i Units