A certain material has a resistance of 5 2 at 20°C. The material is then heated to 800°C, calculate the new resistance if the temperature coefficient of resistivity of the material is 4.9x10-³ °C-1.
Q: A common flashlight bulb is rated at 0.28 A and 2.7 V (the values of the current and voltage under…
A: We know, T=T0+1αRR0-1 where, T0 is the room temperature α is the coefficient of resistivity R is…
Q: (25%) Problem 6: A copper wire has a resistance of 0.495 at 20.0°C, and an iron wire has a…
A: Let at temperature T Riron = Rcu .535[1+5×10^-3(T-20)] = .495 [1+3.9×10^-3(T-20)]…
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 certain laboratory experiment requires an aluminum wire of length of 22.0 m and a resistance of…
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Q: A platinum wire has a resistance of 79.6 ohms at 28oC. At what temperature will the resistance of…
A: initial temperature = t1 = 280 c initial resistance = R1 = 79.6 Ohms final temperature = t2 = ?…
Q: A certain conductor wire has a resistance of 25 Q at 25°C. If the resistance 6. increased to 96 Q at…
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Q: A copper wire whose resistivity is 0.0043/°C at 0°C has its resistance increases by 25% of its…
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Q: Certain material has a resistance of 200 m2 at 20°C if the temperature coefficient of resistance for…
A: We are given the resistance of material at certain temperature. We are also given temperature…
Q: A thin silver wire has a resistance of 0.5 ohms when its temperature(in K) is To. The wire is then…
A: Temperature coefficient of silver = 0.0038 °C-1
Q: An engineering intern is studying the effect of temperature on the resistance of a current carrying…
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Q: The resistance of copper wire with a = 0.00393/C° at 20°C is 85 Q. At 56 °C, its resistance would be…
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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: What is the change in a copper wire's resistivity when its temperature increases to 45°C from room…
A: Initial resistivity, ρo = 1.78×10-8 ΩmCoefficient of expansion, α = 3.9×10-3 (1/°C)Temperature…
Q: (a) The cylinders A-D shown below are all made from copper. Rank them in order of increasing…
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Q: e same wire at -88.0°C, what current should she expect (in A)? The temperature coefficient of…
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Q: Silver at room temperature is found to have a resistivity of 1.59×108 №∙m. If the temperature i…
A: The resistivity which determines the resistance of a material to the flow of electric current will…
Q: Aluminum at 20°C has a resistivity of 2.65×108 m¹ if the temperature is increased to 60°C estimate…
A: The resistivity of a material is an intrinsic property. But it depends on the temperature of the…
Q: A certain laboratory experiment requires an aluminum wire of length of 22.0 m and a resistance of…
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Q: Given the temperature coefficient of resistivity of a certain wire to be 3.1 x10-3 (°C)-1.By what…
A: Given data The temperature coefficient of resistivity of the wire is: α = 3.1 x 10-3 °C-1 The…
Q: The electrical resistance in ohms of a certain thermometer varies with temperature according to the…
A: R = R0 [1 + α (T – T0 )] . . . . . . . . . . . (1)Here, R0 and T0 are the initial resistance and…
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- A certain laboratory experiment requires an aluminum wire of length of 31.0 m and a resistance of 2.80 at 20.0°C. What diameter wire must be used? (The resistivity of aluminum at 20.0°C is 2.82 x 10-8. m.) mmA certain material has a resistance of 250 Q at 20°C. The material is then heated to 1500°C, calculate the new resistance. Given the temperature coefficient of resistivity of the material is 4.65x10.³ °C-¹.At 25°C, the resistance of a segment of gold wire is 59 . When the wire is placed in a liquid bath, the resistance increases to 193 N. The temperature coefficient is 0.0034 (°C) -¹ -1 at 20°C. What is the temperature of the bath? Answer in units of °C.
- What temperature should a copper wire (which is originally at 20°C) reach to increase its resistance by 12%? Information: alpha = 0.0068 (C^-1) Help: The final resistance of the copper wire is R = 1.12Ro Write your answer with 2 significant figures.Iron has a resistivity of 9.71×108 m at 20°C. What will the resistivity of Lead when then temperature is increased to 135°C. (Take a as 6.51×10³)A wire 3.00 m long and 0.450 mm² in cross-sectional area has a resistance of 40.2 at 20.0°C. If its resistance increases to 40.5 at 28.5°C, what is the temperature coefficient of resistivity? (°C) -1
- A certain material is in a room at 25°C. If the absolute temperature (K) of the material is tripled, its resistance doubles. (Water freezes at 273 K.) What is the value for α, the temperature coefficient of resistivity?A copper wire has a resistance of 0.51 Ω at 20.0°C, and an iron wire has a resistance of 0.57 Ω at the same temperature. At what temperature, in degrees Celsius, are their resistances equal? The temperature coefficient of resistivity of copper is 3.9 × 10-3 (°C)-1, while that for iron is 5.0 × 10-3 (°C)-1.The resistance of a coil of copper wire is 4 Ω at 5 °C . What is the resistance at 55 °C .The coefficient of resistivity for copper is 4.3 × 10−3°C−.
- 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?A certain metal has a resistivity of 13.6×108 m at 20°C. the temperature coefficient of the given material is 0.00392°C, what will be the resistivity at 850°C.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.