A 160-µF capacitor charged to 450 V is discharged througha 31.2-k 2 resistor. (a) Find the time constant. (b)Calculate the temperature increase of the resistor, given thatits 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 shorttime of the discharge. (c) Calculate the new resistance,assuming it is pure carbon. (d) Does this change in resistanceseem significant?

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Answered: A 160-µF capacitor charged to 450 V is…

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter10: Direct-current Circuits

Section: Chapter Questions

Problem 69AP: Consider the circuit below. The battery has an emf of = 30.00 V and an internal resistance of r =...

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Consider the circuit below. The battery has an emf of = 30.00 V and an internal resistance of r = 1,00 . (a) Find the equivalent resistance of the circuit and the current out of the battery. (b) Find the current through each resistor, (c) Find die potential drop across each resistor, (d) Find the power dissipated by each resistor, (e) Find the total power supplied by the batteries.
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