The ammeter shown in the figure below reads 2.04 A. Find the following. 15.0 V 7.00 N + 5.00 N A 2.00 N (a) current I, (in A) .6857 A (b) current I, (in A) 1.354 A (c) emf E (in volts) 12.908 V (d) What If? For what value of E (in volts) will the current in the ammeter read 1.73 A? 11.14 X V

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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 on the nature of the material of the conductor and is unaffected by its dimensions.