Choose true or false for each statement regarding the resistance of a wire. O While maintaining a constant voltage V, the current I increases when the length L of a wire decreases. 8The resistivity p is inversely proportional to the resistance R of a wire. 8 While maintaining a constant voltage V, the current I increases when the resistivity p of a wire increases. Submit Answer Tries 0/2

Choose true or false for each statement regarding the resistance of a wire. O While maintaining a constant voltage V, the current I increases when the length L of a wire decreases. 8The resistivity p is inversely proportional to the resistance R of a wire. 8 While maintaining a constant voltage V, the current I increases when the resistivity p of a wire increases. Submit Answer Tries 0/2

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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The resistance R of a conductor depends on its shape and physical dimensions and a property of the material called the resistivity p What does the resistivity of a material depend upon? Assuming that the resistivity of copper is a quarter of that of aluminium and that the density of copper is three times that of aluminimium, find the ratio of the masses of copper and aluminium wires with the same length and the same resistance but with different cross - sectional areas .
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51&page=1 What is the resistance (in units of Q) of a wire made of a material with a resistivity of 3.2 x 10-8 Q. m, if its length is 10.7 m and its diameter is 0.50 mm? Select one: O A. 6.02 OR. 0.67 OC.0.44 OD. 3.88 OE. 1.74 Next page 601 AM A O G d ENG 4/15/2021
QUESTION 1 Consider a carbon rod resistor that has a uniform cross-sectional area of 5.00 mm-. When a potential difference of 3.5 V is applied across the ends of the rod, the rod carries a current of 0.40 A. Find the rod's length (in cm) if its resistivity is p=3.5 x 10 5 Q. m.
Part (a) I measure the resistance of this wire and find it to be R = 156 Q. What is the resistivity of the material the wire is made out of? p= Problem 7: A particular wire has a length of L = 2.7 m and a circular cross-sectional area of radius r= 1.69 mm. G= sin() cos cotan() asin()) acotan() atan() cosh() tanh() I= sin()) cos() cotan() asin() sinh() atan() acotan cosh() tanh() cotanh() Degrees O Radians B Degrees O Radians Part (b) What is the conductivity of this wire, in inverse Ohms per meter? 0 tan()) π ( acos() E ^^^L sinh() cotanh() g L P Y d h m r tan() π acos() E ^^^^ π E 1 Part (c) Give an expression for the current density in the wire if an electric field E is passing through it. Write this in terms of the resistivity and the other variables in the problem. J= n R ( ^^^ sin() cos() cotan() asin() atan() acotan() cosh() + + 7 8 9 4 5 6 1 2 3 0 END NO BACKSPACE DEL CLEAR Part (d) Calculate the current in the wire, in milliamperes, if the field strength is 5.28 V/m. - END NO…