A 160-µF capacitor charged to 450 V is discharged through a 31.2-k 2 resistor. (a) Find the time constant. (b) Calculate the temperature increase of the resistor, given that its mass is 2.50 g and its specific heat is 1.67, k ´kg · °C' noting that most of the thermal energy is retained in the short time of the discharge. (c) Calculate the new resistance, assuming it is pure carbon. (d) Does this change in resistance seem significant?

A 160-µF capacitor charged to 450 V is discharged through a 31.2-k 2 resistor. (a) Find the time constant. (b) Calculate the temperature increase of the resistor, given that its mass is 2.50 g and its specific heat is 1.67, k ´kg · °C' noting that most of the thermal energy is retained in the short time of the discharge. (c) Calculate the new resistance, assuming it is pure carbon. (d) Does this change in resistance seem significant?

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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Question

A 160-µF capacitor charged to 450 V is discharged through
a 31.2-k 2 resistor. (a) Find the time constant. (b)
Calculate the temperature increase of the resistor, given that
its mass is 2.50 g and its specific heat is 1.67, k
´kg · °C'
noting that most of the thermal energy is retained in the short
time of the discharge. (c) Calculate the new resistance,
assuming it is pure carbon. (d) Does this change in resistance
seem significant?

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