Explanation Given data: Potential difference is wire A is 50 V. Potential difference is wire B is 100 V. Current in wire A is 2 A. Current in wire B is 2 A. Formula used: Write the expression for Ohm’s law. V = I R (1) Here, I is current. R is resistance. Write the expression for power. P = I V (2) The value of resistance in wire A is, Substitute 50 V for V and 2 A for I in equation (1), 50 V = 2 A × R R = 50 V 2 A R = 25 Ω The value of resistance in wire B is, Substitute 100 V for V and 2 A for I in equation (1), 100 V = 2 A × R R = 100 V 2 A <

16th Edition

ISBN: 9780077862619

Author: KRAUSKOPF, Konrad B. (konrad Bates), Beiser, Arthur

Publisher: Mcgraw-hill Education,

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Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends o…

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Chapter 6, Problem 36E

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The resistances, rate of flow of charge and the rates of flow of energy in the two wires.

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Chapter 6, Problem 35E

Chapter 6, Problem 37E

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