Tungsten filament has a cold resistance of 0.350 ohms. If the temperature increases from 20°C to its typical operating temperature of 2850°C, what will be its operating resistance?

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: A capacitor of capacitance C= 2x 10^-6 is discharged through a resistor of resistance = 10^5 ohm.…

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Q: A resistor with resistance R is connected to a battery that has emf 12.0 V and internal resistance r…

A: Given data,  ε=12 Vr=0.4 ohmP=80 Wwe know, P=I2R-------(1)where, I=εR+r-------(2)Putting value of I…

Q: The resistance of a copper wire at 7⁰C is 50 mΩ. If the temperature coefficient of copper at 0⁰C is…

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Q: The resistance of a thin silver wire is 1.0 32 at 0°C. The wire is placed in a liquid bath and its…

A: Resistance is a measure of the opposition to current flow in an electrical circuit. Here,we…

Q: A toaster has a Nichrome (a=4.5×104 °C-) heating element that has a resistance of Ro= 80 2 at a…

A: The relation between the resistance and the temperature is given by, Here, R, Ro, T, To and α…

Q: A copper wire has a resistance of 0.480 Ω at 20.0°C, and an iron wire has a resistance of 0.519 Ω at…

A: We have given Resistance of copper wire (Rc)=0.480 ohmTemperature (T)=20°CResistance of Iron  wire…

Q: When at 25 degrees Celsius, a certain resistor has a resistance of 220 Ohms. When connected to a…

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Q: A tungsten filament of 1 mm² with a length of 1.5 cm is used as a heating element. If the operating…

A: The resistance of a material will depend on the resistivity, length, and area. Resistivity depends…

Q: A light bulb, having a tungsten filament, draws 0.5 A at 110 V. The cold resistance of the filament…

A: Resistance of a material is given by Ohm's law, R=VI Now resistance will depend on the temperature.…

Q: The length of a 200 m lead wire has a resistance of 1.7 Ω. If the cross section of this wire is 3.0…

A: Resistance is a measure of the opposition to current flow in an electrical circuit. Resistance is…

Q: n electronic device designed to operate at any temperature in the range from -17.6°C to 57.9°C…

A: The relation between resistance and temperature is given by:- ∆R= Rα∆T Where; ∆R= change in…

Q: A 12-ohm resistor is connected to a 30-volt battery with an internal resistance r. While connected…

A: To determine: The value of internal resistance   Given: Resistance, R=12 Ω Emf, E=30 V Rate of…

Q: A given copper wire has a resistance of 5.20 2 at 20.0°C while a tungsten wire of the same diameter…

A: Given: The resistance of copper wire is 5.20 ohms. The temperature is 20.0 degrees Celcius. The…

Q: A carbon resistor is to be used as a thermometer. On a winter day when the temperature is 2 ℃, the…

A: The carbon resistor at a temperature T0=20C The resistance of the carbon resistor  R0=215 Ω…

Q: What is the maximum power deliverable b a stack of 100 10YSZ cells to an optimum resistive load?…

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Q: An electric iron consumes energy at a rate of 840 W when heating is at the maximum rate and 360 W…

A: Write the expression for power output. When heating at maximum rate. Use equation (I) to find the…

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 given copper wire has a resistance of 5.14 2 at 20.0°C while a tungsten wire of the same diameter…

A: Write the expression for resistance for tungsten and copper and equate to find the temperature at…

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: If an aluminum power line has a resistance of 80 at 30°C, what is its resistance when cold air…

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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: •21 ILW A common flashlight bulb is rated at 0.30 A and 2.9 V (the values of the current and voltage…

A: Operating resistance of the bulb is R=VI=2.9 V0.3 A=9.67Ω

Q: A certain lightbulb has a tungsten filament with a resistance of 17.8 Ω when at 20.0°C and 147 Ω…

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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: If the 0.100-mm diameter tungsten filament in a light bulb is to have a resistance of 0.200 Ω at…

A: Given - Diameter of tungsten filament ,d = 0.100 mm =0.100 x 10-3 m  Resistance of tungsten…

Q: A toaster has a Nichrome (a-4.5x10* °C) heating element that has a resistance of Ro- 80 n at a…

A: Given data: Resistance  R0=80Ω Temperature T0 =20°C Coefficient of temperature α=4.5×10-4°C-1…

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 toaster has a Nichrome (a=4.5×10-4 °C¯-l) heating element that has a resistance of Ro= 80 Q at a…

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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: Some digital thermometers measure the current through a semiconductor to determine a patient's…

A: Given data:  Resistance = R Initial temperature (T0) = 37.0°C Final temperature (T) = 53.8°C…

Q: volume of metal a new wire is made that is three times longer than t original wire. What is the…

A: R= 21 Ω let the initial length and area of cross-section of wire be=> l and A let new wire's…

Q: If the 0.180 mm diameter tungsten filament in a light bulb is to have a resistance of 0.176 Ω at…

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Q: A power transmission line is hung from metal towers with glass insulators having a resistance of…

A: Given that resistance is 1.00×109 Ω, and voltage is 200 kV.

Q: At 25°C, the resistance of a segment of gold wire is 59 N. When the wire is placed in a liquid bath,…

A: Given, At (T1)= 25°C  resistance of wire is (R1)= 59 ohm. When wire placed in liquid bath( having…

Q: nce of 0.49 Ω at 20.0°C, and an iron wire has a resistance of 0.57 Ω at the same temperature.  a)…

A: We know that we have given that the A copper wire has a resistance of 0.49 Ω at 20.0°C, and an iron…

Q: A copper transmission line is to be replaced by one of aluminum having the same total resistance. If…

A: Given data: Let the length of each wire is L. Resistivity of copper wire, ρcu=1.68×10-8 Ω-m.…

Q: A common flashlight bulb is rated at 0.30 A and 2.9 V (the values of the current and voltage under…

A: Given V at Operating temperature- 2.9V Current at Operating temp- 0.30A R1 = Resistance at room…