Aluminum and copper wires of equal length are found to have the same resistance. What is the ratio of their radii?

Q: A copper wire of length L has a resistance R. The wire is passed through a small metal ring,…

A: Given data: The length of wire is L. The resistance is R.

Q: Two conductors are made of the same material and have the same length. Con- ductor A is a solid wire…

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Q: A student connects two resistors with unknown resistance values in series, and notes that the…

A: Consider two resistors of resistance R1 and R2. Assuming R1>R2

Q: what diameter must be chosen for the new wire?

A: Given: Initial length of wire is Li=4.635 m Initial diameter of wire is di=6.53 mm Length of new…

Q: A given wire has a resistance of x ohms. If the wire is stretched to double its length and quadruple…

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Q: Two conductors are made of the same material and have the same length. Conductor A is a solid wire…

A: Given: Diameter of conductor wire A = 1.0 mm. Outer Diameter of conductor hollow tube B = 2.0 mm.…

Q: A certain wire has a resistance of 140 Ω. What is the resistance of a second wire, made of the same…

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Q: A wire of initial length L0 and radius r0 has a measured resistance of 1.0 Ω. The wire is drawn…

A: Given : Initial length of wire = Lo Initial radius = ro Measured resistance, Ro = 1.0 Ω New radius,…

Q: A solar cell generates an EMF of 21 V. The terminal potential difference of 18.9 V is measured when…

A: Internal resistance of solar cell r= 0.555 ohm

Q: A given copper wire has a resistance of 5.08 2 at 20.0°C while a tungsten wire of the same diameter…

A: The resistance of copper wire = 5.08 ohm  Resistance of Tungsten wire 4.71 ohm

Q: A 100 μF defibrillator capacitor is charged to 1500 V. When fired through a patient's chest, it…

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Q: A human being can be electrocuted if a current as small as 50 mA passes near the heart. An…

A: The given values are,

Q: A copper wire has diameter 0.5 mm and resistivity of 1.6 × 10-8 Ω m. What will be the length of this…

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Q: Two conductors are made of the same material and have the same length. Conductor A is a solid wire…

A: RA=pLπrA2RB=pLπr22-r12

Q: A steel wire of length LL and radius r1r1 has a resistance RR. A second steel wire has the same…

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Q: The capacitor in the flash of a disposable camera has a value of 165 μF. What is the resistance of…

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Q: Platinum and copper wires of equal length are found to have the same resistance. What is the ratio…

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Q: An aluminum rod with a square cross section is 1.3 m long and 5.2 mm on edge. (a) What is the…

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Q: Two wires have the same length and the same resistance. One is made from aluminum and the other from…

A: Given: Two wires having same length L Same resistance R  To find: Ratio of cross-secctional area of…

Q: Tungsten and gold wires of equal length are found to have the same resistance. What is the ratio of…

A: We are given 2 wires. One is made of tungsten. Other is made of gold. Both the wires have same…

Q: The power dissipated by a resistor with a resistance of R = 100Ω is P = 2.0 W . What are the current…

A: given,  resistance  R = 100 Ω power dissipated across resistor P = 2.0 W Find current through the…

Q: The four resistances are R1 = 1 ?, R2 = 2 ?, R3 = 4 ?, and R4 = 12?. The power source has a…

A: solution is given as

Q: A copper wire has a resistance of 15 Ω at some temperature. An aluminum wire has 3 times the length…

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Q: A wire is stretched to make it 0.1% longer. What is the percentage change in the resistance?

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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 data: Temperature is, T=20∘C. Resistance of copper at 20∘ is, R1=5.20 Ω. Resistance of…

Q: Aluminum and copper wires of equal length are found to have the same resistance. What is the ratio…

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Q: a piece of copper wire with a radius of 6 cm has a resistance of 50 ohm. the wire is cylindrical. If…

A: Write the equation for the resistivity formula. ρ = RA/L Here,ρ is resistivity, R is resistance, A…

Q: Two wires have the same length and the same resistance. One is made from aluminum and the other from…

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Q: Two identical resistors of R0 = 98 Ω are connected head-to-tail. Express the resistance R0 of one of…

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Q: hale and Kanmuro are two islands located in the Chimera archipelago. These two are separated by a…

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