1. A wire of length L and cross-sectional area A has a resistance of 5 Ω. What...
1. A wire of length L and cross-sectional area A has a resistance of 5 Ω. What is the resistance if the same amount of material is used to make a wire triple as long?
2. What is the resistance of 15 m length of household no. 14 copper circular wire having a diameter of 1.6 mm? (Hint: the resistivity of copper – textbook, page 782)
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1. A wire of length L and
cross-sectional area A has a resistance of 5 Ω. What...
A wire of length L and cross-sectional area A has a resistance of 5 Ω. What...
A wire of length L and cross-sectional area A has a resistance of 5 Ω. What is the resistance if the same amount of material is used to make a wire triple as long?
A wire of length L and cross-sectional area A has resistance R. What will be the...
A wire of length L and cross-sectional area A has resistance R. What will be the resistance Rstretched of the wire if it is stretched to twice its original length? Assume that the density and resistivity of the material do not change when the wire is stretched.
One copper wire has a cross sectional area of A and resistance R and length L....
One copper wire has a cross sectional area of A and resistance R and length L. A second copper wire has a length L and cross-sectional area 2A. What is the resistance of the second wire in terms of R? R/2 R 2R 4R Some other value
A copper wire of length L and cross-sectional area A has a resistance of R0. What...
A copper wire of length L and cross-sectional area A has a resistance of R0. What is the resistance of another copper wire with length 6L and cross-sectional area 2A. Give your answer as a multiple of R0. A 18.00 R0 B 0.33 R0 C 6.00 R0 D 3.00 R0 E 1.50 R0
A wire 3.00 m long and 0.450 mm2 in cross-sectional area has a resistance of 40.2...
A wire 3.00 m long and 0.450 mm2 in cross-sectional area has a resistance of 40.2 Ω at 20.0°C. If its resistance increases to 40.9 Ω at 27.5°C, what is the temperature coefficient of resistivity? (°C)−1
Now let’s see how temperature affects the resistance of copper wire. A length of 18 gauge...
Now let’s see how temperature affects the resistance of copper wire. A length of 18 gauge copper wire with a diameter of 1.02 mm and a cross-sectional area of 8.20×10−7 m2 has a resistance of 1.02 Ω at a temperature of 20 ∘C. Find the resistance at 0 ∘C and at 100 ∘C. The temperature coefficient of resistivity of copper is 0.0039 (C∘)−1. On a hot summer day in Death Valley, the resistance is 1.15 Ω. What is the temperature?
Consider copper wire with a cross-sectional area 7.85 × 10–5 m2. Caculate the required length of...
Consider copper wire with a cross-sectional area 7.85 × 10–5 m2. Caculate the required length of this wire such that it has a resistance of 0.341 Ω at a temperature of 180°C. The resistivity of copper is 1.68 × 10–8 Ω·m at 20°C and the temperature coefficient of resitivity of copper is 3.86 × 10–3 °C-1. Ingore any effects of thermal expansion on the dimensions of the wire. Can you please also explain how to use the temperature coefficient to...
A copper wire of cross-sectional area of 8.2x10^-7 m^2 has a resistance of 1.11 Ω. a)....
A copper wire of cross-sectional area of 8.2x10^-7 m^2 has a resistance of 1.11 Ω. a). How long is the wire? b). If a potential of 12.0 V is applied across the ends of the wire, what current will flow through the wire? c). How much electrical power is supplied to the spool? d). How many electrons (N) pass through this wire in 1.00 minutes?
What is the resistance of a copper wire 1.2 m in length whose cross-sectional area is...
What is the resistance of a copper wire 1.2 m in length whose cross-sectional area is 3.0 x 10-6 m2 at 35oC?
has Conductor 1 meter Length with cross-sectional area of Imm² and a resistance of gose. -...
has Conductor 1 meter Length with cross-sectional area of Imm² and a resistance of gose. - what is the resistance of wire from the material and with a Cross sectional area of o. 25mm?? 100 meters Length of same
has Conductor 1 meter Length with cross-sectional area of Imm² and a resistance of gose. - what is the resistance of wire from the material and with a Cross sectional area of o. 25mm?? 100 meters Length of same
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