O Temperature Independent Ohmic Resistors An electrical device draws 2.64 A at 120 V. (a) If the voltage drops by 34%, what will be the current, assuming the resistance doesn't change? (b) If the resistance of the device were reduced by 34%, what current would be drawn at 120 V? O Temperature-Dependent Ohmic Resistors A length of silver wire is connected to a constant voltage source and a current of 0.3 A is precisely measured at a temperature of 25°C. The temperature of the wire increases and later the current is 0.23 A. Determine the temperature of the wire when the current is 0.23 A. For silver, a 0.0061 C1 at 20°C.
O Temperature Independent Ohmic Resistors An electrical device draws 2.64 A at 120 V. (a) If the voltage drops by 34%, what will be the current, assuming the resistance doesn't change? (b) If the resistance of the device were reduced by 34%, what current would be drawn at 120 V? O Temperature-Dependent Ohmic Resistors A length of silver wire is connected to a constant voltage source and a current of 0.3 A is precisely measured at a temperature of 25°C. The temperature of the wire increases and later the current is 0.23 A. Determine the temperature of the wire when the current is 0.23 A. For silver, a 0.0061 C1 at 20°C.
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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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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Please answer ONLY the part below temperature dependent ohmic resistors. do not answer part A.
Transcribed Image Text:O Temperature Independent Ohmic Resistors
An electrical device draws 2.64 A at 120 V.
(a) If the voltage drops by 34%, what will be the current, assuming the resistance doesn't change?
(b) If the resistance of the device were reduced by 34%, what current would be drawn at 120 V?
O Temperature-Dependent Ohmic Resistors
A length of silver wire is connected to a constant voltage source and a current of 0.3 A is precisely measured at a temperature of 25°C. The temperature of the wire increases and later the current is 0.23 A. Determine the temperature of the wire when the current is 0.23 A. For silver, a =
0.0061 °C-1 at 20°C.
°C
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